21964904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1663}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 44728320

約数和(自身を除く): 22763416

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1651, 1663, 3302, 3326, 6604, 6652, 13208, 13304, 21619, 43238, 86476, 172952, 211201, 422402, 844804, 1689608, 2745613, 5491226, 10982452, 21964904]

約数ペア:

[(1, 21964904), (2, 10982452), (4, 5491226), (8, 2745613), (13, 1689608), (26, 844804), (52, 422402), (104, 211201), (127, 172952), (254, 86476), (508, 43238), (1016, 21619), (1651, 13304), (1663, 13208), (3302, 6652), (3326, 6604)]