21489416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1627}}^1$

素因数の和:1773

約数の個数: 32

約数和(自身を含む): 43760640

約数和(自身を除く): 22271224

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1627, 1651, 3254, 3302, 6508, 6604, 13016, 13208, 21151, 42302, 84604, 169208, 206629, 413258, 826516, 1653032, 2686177, 5372354, 10744708, 21489416]

約数ペア:

[(1, 21489416), (2, 10744708), (4, 5372354), (8, 2686177), (13, 1653032), (26, 826516), (52, 413258), (104, 206629), (127, 169208), (254, 84604), (508, 42302), (1016, 21151), (1627, 13208), (1651, 13016), (3254, 6604), (3302, 6508)]