21289905935

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{587}}^1\times {\mathrm{1303}}^1$

素因数の和:2207

約数の個数: 32

約数和(自身を含む): 27051010560

約数和(自身を除く): 5761104625

約数列:

[1, 5, 19, 95, 293, 587, 1303, 1465, 2935, 5567, 6515, 11153, 24757, 27835, 55765, 123785, 171991, 381779, 764861, 859955, 1908895, 3267829, 3824305, 7253801, 14532359, 16339145, 36269005, 72661795, 224104273, 1120521365, 4257981187, 21289905935]

約数ペア:

[(1, 21289905935), (5, 4257981187), (19, 1120521365), (95, 224104273), (293, 72661795), (587, 36269005), (1303, 16339145), (1465, 14532359), (2935, 7253801), (5567, 3824305), (6515, 3267829), (11153, 1908895), (24757, 859955), (27835, 764861), (55765, 381779), (123785, 171991)]