21616610

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{677}}^1$

素因数の和:818

約数の個数: 32

約数和(自身を含む): 40614912

約数和(自身を除く): 18998302

約数列:

[1, 2, 5, 10, 31, 62, 103, 155, 206, 310, 515, 677, 1030, 1354, 3193, 3385, 6386, 6770, 15965, 20987, 31930, 41974, 69731, 104935, 139462, 209870, 348655, 697310, 2161661, 4323322, 10808305, 21616610]

約数ペア:

[(1, 21616610), (2, 10808305), (5, 4323322), (10, 2161661), (31, 697310), (62, 348655), (103, 209870), (155, 139462), (206, 104935), (310, 69731), (515, 41974), (677, 31930), (1030, 20987), (1354, 15965), (3193, 6770), (3385, 6386)]