31490361

素因数分解:

$3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{2617}}^1$

素因数の和:2821

約数の個数: 24

約数和(自身を含む): 52276224

約数和(自身を除く): 20785863

約数列:

[1, 3, 7, 9, 21, 63, 191, 573, 1337, 1719, 2617, 4011, 7851, 12033, 18319, 23553, 54957, 164871, 499847, 1499541, 3498929, 4498623, 10496787, 31490361]

約数ペア:

[(1, 31490361), (3, 10496787), (7, 4498623), (9, 3498929), (21, 1499541), (63, 499847), (191, 164871), (573, 54957), (1337, 23553), (1719, 18319), (2617, 12033), (4011, 7851)]