21630188

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{331}}^1$

素因数の和:414

約数の個数: 36

約数和(自身を含む): 41539176

約数和(自身を除く): 19908988

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 331, 527, 662, 961, 1054, 1324, 1922, 2108, 3844, 5627, 10261, 11254, 16337, 20522, 22508, 32674, 41044, 65348, 174437, 318091, 348874, 636182, 697748, 1272364, 5407547, 10815094, 21630188]

約数ペア:

[(1, 21630188), (2, 10815094), (4, 5407547), (17, 1272364), (31, 697748), (34, 636182), (62, 348874), (68, 318091), (124, 174437), (331, 65348), (527, 41044), (662, 32674), (961, 22508), (1054, 20522), (1324, 16337), (1922, 11254), (2108, 10261), (3844, 5627)]