28203273

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2063}}^1$

素因数の和:2114

約数の個数: 36

約数和(自身を含む): 48941568

約数和(自身を除く): 20738295

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 441, 651, 1519, 1953, 2063, 4557, 6189, 13671, 14441, 18567, 43323, 63953, 101087, 129969, 191859, 303261, 447671, 575577, 909783, 1343013, 3133697, 4029039, 9401091, 28203273]

約数ペア:

[(1, 28203273), (3, 9401091), (7, 4029039), (9, 3133697), (21, 1343013), (31, 909783), (49, 575577), (63, 447671), (93, 303261), (147, 191859), (217, 129969), (279, 101087), (441, 63953), (651, 43323), (1519, 18567), (1953, 14441), (2063, 13671), (4557, 6189)]