21947408

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11527}}^1$

素因数の和:11559

約数の個数: 40

約数和(自身を含む): 51460992

約数和(自身を除く): 29513584

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11527, 23054, 46108, 80689, 92216, 161378, 184432, 195959, 322756, 391918, 645512, 783836, 1291024, 1371713, 1567672, 2743426, 3135344, 5486852, 10973704, 21947408]

約数ペア:

[(1, 21947408), (2, 10973704), (4, 5486852), (7, 3135344), (8, 2743426), (14, 1567672), (16, 1371713), (17, 1291024), (28, 783836), (34, 645512), (56, 391918), (68, 322756), (112, 195959), (119, 184432), (136, 161378), (238, 92216), (272, 80689), (476, 46108), (952, 23054), (1904, 11527)]