21525604

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{4007}}^1$

素因数の和:4107

約数の個数: 24

約数和(自身を含む): 40400640

約数和(自身を除く): 18875036

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 316, 1343, 2686, 4007, 5372, 8014, 16028, 68119, 136238, 272476, 316553, 633106, 1266212, 5381401, 10762802, 21525604]

約数ペア:

[(1, 21525604), (2, 10762802), (4, 5381401), (17, 1266212), (34, 633106), (68, 316553), (79, 272476), (158, 136238), (316, 68119), (1343, 16028), (2686, 8014), (4007, 5372)]