20992888

素因数分解:

$2^3\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1637}}^1$

素因数の和:1879

約数の個数: 32

約数和(自身を含む): 45208800

約数和(自身を除く): 24215912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 229, 458, 916, 1603, 1637, 1832, 3206, 3274, 6412, 6548, 11459, 12824, 13096, 22918, 45836, 91672, 374873, 749746, 1499492, 2624111, 2998984, 5248222, 10496444, 20992888]

約数ペア:

[(1, 20992888), (2, 10496444), (4, 5248222), (7, 2998984), (8, 2624111), (14, 1499492), (28, 749746), (56, 374873), (229, 91672), (458, 45836), (916, 22918), (1603, 13096), (1637, 12824), (1832, 11459), (3206, 6548), (3274, 6412)]