20493156

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 49351680

約数和(自身を除く): 28858524

約数列:

[1, 2, 3, 4, 6, 12, 67, 71, 134, 142, 201, 213, 268, 284, 359, 402, 426, 718, 804, 852, 1077, 1436, 2154, 4308, 4757, 9514, 14271, 19028, 24053, 25489, 28542, 48106, 50978, 57084, 72159, 76467, 96212, 101956, 144318, 152934, 288636, 305868, 1707763, 3415526, 5123289, 6831052, 10246578, 20493156]

約数ペア:

[(1, 20493156), (2, 10246578), (3, 6831052), (4, 5123289), (6, 3415526), (12, 1707763), (67, 305868), (71, 288636), (134, 152934), (142, 144318), (201, 101956), (213, 96212), (268, 76467), (284, 72159), (359, 57084), (402, 50978), (426, 48106), (718, 28542), (804, 25489), (852, 24053), (1077, 19028), (1436, 14271), (2154, 9514), (4308, 4757)]