21000848

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7019}}^1$

素因数の和:7055

約数の個数: 40

約数和(自身を含む): 47005920

約数和(自身を除く): 26005072

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 7019, 14038, 28076, 56152, 77209, 112304, 119323, 154418, 238646, 308836, 477292, 617672, 954584, 1235344, 1312553, 1909168, 2625106, 5250212, 10500424, 21000848]

約数ペア:

[(1, 21000848), (2, 10500424), (4, 5250212), (8, 2625106), (11, 1909168), (16, 1312553), (17, 1235344), (22, 954584), (34, 617672), (44, 477292), (68, 308836), (88, 238646), (136, 154418), (176, 119323), (187, 112304), (272, 77209), (374, 56152), (748, 28076), (1496, 14038), (2992, 7019)]