19508775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 40497408

約数和(自身を除く): 20988633

約数列:

[1, 3, 5, 11, 13, 15, 17, 25, 33, 39, 51, 55, 65, 75, 85, 107, 143, 165, 187, 195, 221, 255, 275, 321, 325, 425, 429, 535, 561, 663, 715, 825, 935, 975, 1105, 1177, 1275, 1391, 1605, 1819, 2145, 2431, 2675, 2805, 3315, 3531, 3575, 4173, 4675, 5457, 5525, 5885, 6955, 7293, 8025, 9095, 10725, 12155, 14025, 15301, 16575, 17655, 20009, 20865, 23647, 27285, 29425, 34775, 36465, 45475, 45903, 60027, 60775, 70941, 76505, 88275, 100045, 104325, 118235, 136425, 182325, 229515, 260117, 300135, 354705, 382525, 500225, 591175, 780351, 1147575, 1300585, 1500675, 1773525, 3901755, 6502925, 19508775]

約数ペア:

[(1, 19508775), (3, 6502925), (5, 3901755), (11, 1773525), (13, 1500675), (15, 1300585), (17, 1147575), (25, 780351), (33, 591175), (39, 500225), (51, 382525), (55, 354705), (65, 300135), (75, 260117), (85, 229515), (107, 182325), (143, 136425), (165, 118235), (187, 104325), (195, 100045), (221, 88275), (255, 76505), (275, 70941), (321, 60775), (325, 60027), (425, 45903), (429, 45475), (535, 36465), (561, 34775), (663, 29425), (715, 27285), (825, 23647), (935, 20865), (975, 20009), (1105, 17655), (1177, 16575), (1275, 15301), (1391, 14025), (1605, 12155), (1819, 10725), (2145, 9095), (2431, 8025), (2675, 7293), (2805, 6955), (3315, 5885), (3531, 5525), (3575, 5457), (4173, 4675)]