19966544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1627}}^1$

素因数の和:1707

約数の個数: 40

約数和(自身を含む): 42393120

約数和(自身を除く): 22426576

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 104, 118, 208, 236, 472, 767, 944, 1534, 1627, 3068, 3254, 6136, 6508, 12272, 13016, 21151, 26032, 42302, 84604, 95993, 169208, 191986, 338416, 383972, 767944, 1247909, 1535888, 2495818, 4991636, 9983272, 19966544]

約数ペア:

[(1, 19966544), (2, 9983272), (4, 4991636), (8, 2495818), (13, 1535888), (16, 1247909), (26, 767944), (52, 383972), (59, 338416), (104, 191986), (118, 169208), (208, 95993), (236, 84604), (472, 42302), (767, 26032), (944, 21151), (1534, 13016), (1627, 12272), (3068, 6508), (3254, 6136)]