21085915691225

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1\times {\mathrm{35809}}^1$

素因数の和:36424

約数の個数: 144

約数和(自身を含む): 33622478827200

約数和(自身を除く): 12536563135975

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 89, 175, 245, 275, 385, 445, 491, 539, 623, 979, 1225, 1925, 2225, 2455, 2695, 3115, 3437, 4361, 4895, 5401, 6853, 12275, 13475, 15575, 17185, 21805, 24059, 24475, 27005, 34265, 35809, 37807, 43699, 47971, 85925, 109025, 120295, 135025, 171325, 179045, 189035, 218495, 239855, 250663, 264649, 305893, 393899, 480689, 601475, 895225, 945175, 1092475, 1199275, 1253315, 1323245, 1529465, 1754641, 1969495, 2141251, 2403445, 2757293, 3187001, 3364823, 6266575, 6616225, 7647325, 8773205, 9847475, 10706255, 12017225, 13786465, 15935005, 16824115, 17582219, 19301051, 22309007, 23553761, 35057011, 43866025, 53531275, 68932325, 79675025, 84120575, 87911095, 96505255, 111545035, 117768805, 123075533, 156163049, 175285055, 193404409, 245399077, 439555475, 482526275, 557725175, 588844025, 615377665, 780815245, 861528731, 876425275, 967022045, 1226995385, 1353830863, 1564817491, 1717793539, 3076888325, 3904076225, 4307643655, 4835110225, 6134976925, 6769154315, 7824087455, 8588967695, 9476816041, 10953722437, 17212992401, 21538218275, 33845771575, 39120437275, 42944838475, 47384080205, 54768612185, 76676057059, 86064962005, 120490946807, 236920401025, 273843060925, 383380285295, 430324810025, 602454734035, 843436627649, 1916901426475, 3012273670175, 4217183138245, 21085915691225]

約数ペア:

[(1, 21085915691225), (5, 4217183138245), (7, 3012273670175), (11, 1916901426475), (25, 843436627649), (35, 602454734035), (49, 430324810025), (55, 383380285295), (77, 273843060925), (89, 236920401025), (175, 120490946807), (245, 86064962005), (275, 76676057059), (385, 54768612185), (445, 47384080205), (491, 42944838475), (539, 39120437275), (623, 33845771575), (979, 21538218275), (1225, 17212992401), (1925, 10953722437), (2225, 9476816041), (2455, 8588967695), (2695, 7824087455), (3115, 6769154315), (3437, 6134976925), (4361, 4835110225), (4895, 4307643655), (5401, 3904076225), (6853, 3076888325), (12275, 1717793539), (13475, 1564817491), (15575, 1353830863), (17185, 1226995385), (21805, 967022045), (24059, 876425275), (24475, 861528731), (27005, 780815245), (34265, 615377665), (35809, 588844025), (37807, 557725175), (43699, 482526275), (47971, 439555475), (85925, 245399077), (109025, 193404409), (120295, 175285055), (135025, 156163049), (171325, 123075533), (179045, 117768805), (189035, 111545035), (218495, 96505255), (239855, 87911095), (250663, 84120575), (264649, 79675025), (305893, 68932325), (393899, 53531275), (480689, 43866025), (601475, 35057011), (895225, 23553761), (945175, 22309007), (1092475, 19301051), (1199275, 17582219), (1253315, 16824115), (1323245, 15935005), (1529465, 13786465), (1754641, 12017225), (1969495, 10706255), (2141251, 9847475), (2403445, 8773205), (2757293, 7647325), (3187001, 6616225), (3364823, 6266575)]