156665649

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 242565120

約数和(自身を除く): 85899471

約数列:

[1, 3, 7, 21, 139, 191, 281, 417, 573, 843, 973, 1337, 1967, 2919, 4011, 5901, 26549, 39059, 53671, 79647, 117177, 161013, 185843, 273413, 375697, 557529, 820239, 1127091, 7460269, 22380807, 52221883, 156665649]

約数ペア:

[(1, 156665649), (3, 52221883), (7, 22380807), (21, 7460269), (139, 1127091), (191, 820239), (281, 557529), (417, 375697), (573, 273413), (843, 185843), (973, 161013), (1337, 117177), (1967, 79647), (2919, 53671), (4011, 39059), (5901, 26549)]