21201478515

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{188533}}^1$

素因数の和:188578

約数の個数: 96

約数和(自身を含む): 46424612160

約数和(自身を除く): 25223133645

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 49, 51, 63, 85, 105, 119, 135, 147, 153, 189, 245, 255, 315, 357, 441, 459, 595, 735, 765, 833, 945, 1071, 1323, 1785, 2205, 2295, 2499, 3213, 4165, 5355, 6615, 7497, 12495, 16065, 22491, 37485, 112455, 188533, 565599, 942665, 1319731, 1696797, 2827995, 3205061, 3959193, 5090391, 6598655, 8483985, 9238117, 9615183, 11877579, 16025305, 19795965, 22435427, 25451955, 27714351, 28845549, 35632737, 46190585, 48075915, 59387895, 67306281, 83143053, 86536647, 112177135, 138571755, 144227745, 157047989, 178163685, 201918843, 249429159, 336531405, 415715265, 432683235, 471143967, 605756529, 785239945, 1009594215, 1247145795, 1413431901, 2355719835, 3028782645, 4240295703, 7067159505, 21201478515]

約数ペア:

[(1, 21201478515), (3, 7067159505), (5, 4240295703), (7, 3028782645), (9, 2355719835), (15, 1413431901), (17, 1247145795), (21, 1009594215), (27, 785239945), (35, 605756529), (45, 471143967), (49, 432683235), (51, 415715265), (63, 336531405), (85, 249429159), (105, 201918843), (119, 178163685), (135, 157047989), (147, 144227745), (153, 138571755), (189, 112177135), (245, 86536647), (255, 83143053), (315, 67306281), (357, 59387895), (441, 48075915), (459, 46190585), (595, 35632737), (735, 28845549), (765, 27714351), (833, 25451955), (945, 22435427), (1071, 19795965), (1323, 16025305), (1785, 11877579), (2205, 9615183), (2295, 9238117), (2499, 8483985), (3213, 6598655), (4165, 5090391), (5355, 3959193), (6615, 3205061), (7497, 2827995), (12495, 1696797), (16065, 1319731), (22491, 942665), (37485, 565599), (112455, 188533)]