18917656

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{809}}^1$

素因数の和:931

約数の個数: 32

約数和(自身を含む): 36936000

約数和(自身を除く): 18018344

約数列:

[1, 2, 4, 8, 37, 74, 79, 148, 158, 296, 316, 632, 809, 1618, 2923, 3236, 5846, 6472, 11692, 23384, 29933, 59866, 63911, 119732, 127822, 239464, 255644, 511288, 2364707, 4729414, 9458828, 18917656]

約数ペア:

[(1, 18917656), (2, 9458828), (4, 4729414), (8, 2364707), (37, 511288), (74, 255644), (79, 239464), (148, 127822), (158, 119732), (296, 63911), (316, 59866), (632, 29933), (809, 23384), (1618, 11692), (2923, 6472), (3236, 5846)]