156928359

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1453}}^1$

素因数の和:1639

約数の個数: 32

約数和(自身を含む): 247528960

約数和(自身を除く): 90600601

約数列:

[1, 3, 7, 21, 37, 111, 139, 259, 417, 777, 973, 1453, 2919, 4359, 5143, 10171, 15429, 30513, 36001, 53761, 108003, 161283, 201967, 376327, 605901, 1128981, 1413769, 4241307, 7472779, 22418337, 52309453, 156928359]

約数ペア:

[(1, 156928359), (3, 52309453), (7, 22418337), (21, 7472779), (37, 4241307), (111, 1413769), (139, 1128981), (259, 605901), (417, 376327), (777, 201967), (973, 161283), (1453, 108003), (2919, 53761), (4359, 36001), (5143, 30513), (10171, 15429)]