81772012

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{21317}}^1$

素因数の和:21465

約数の個数: 24

約数和(自身を含む): 164745504

約数和(自身を除く): 82973492

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 21317, 42634, 85268, 149219, 298438, 596876, 2920429, 5840858, 11681716, 20443003, 40886006, 81772012]

約数ペア:

[(1, 81772012), (2, 40886006), (4, 20443003), (7, 11681716), (14, 5840858), (28, 2920429), (137, 596876), (274, 298438), (548, 149219), (959, 85268), (1918, 42634), (3836, 21317)]