20909116

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 21003524

約数列:

[1, 2, 4, 17, 23, 29, 34, 46, 58, 68, 92, 116, 391, 461, 493, 667, 782, 922, 986, 1334, 1564, 1844, 1972, 2668, 7837, 10603, 11339, 13369, 15674, 21206, 22678, 26738, 31348, 42412, 45356, 53476, 180251, 227273, 307487, 360502, 454546, 614974, 721004, 909092, 1229948, 5227279, 10454558, 20909116]

約数ペア:

[(1, 20909116), (2, 10454558), (4, 5227279), (17, 1229948), (23, 909092), (29, 721004), (34, 614974), (46, 454546), (58, 360502), (68, 307487), (92, 227273), (116, 180251), (391, 53476), (461, 45356), (493, 42412), (667, 31348), (782, 26738), (922, 22678), (986, 21206), (1334, 15674), (1564, 13369), (1844, 11339), (1972, 10603), (2668, 7837)]