20318454

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2801}}^1$

素因数の和:2853

約数の個数: 48

約数和(自身を含む): 48956544

約数和(自身を除く): 28638090

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 186, 234, 279, 403, 558, 806, 1209, 2418, 2801, 3627, 5602, 7254, 8403, 16806, 25209, 36413, 50418, 72826, 86831, 109239, 173662, 218478, 260493, 327717, 520986, 655434, 781479, 1128803, 1562958, 2257606, 3386409, 6772818, 10159227, 20318454]

約数ペア:

[(1, 20318454), (2, 10159227), (3, 6772818), (6, 3386409), (9, 2257606), (13, 1562958), (18, 1128803), (26, 781479), (31, 655434), (39, 520986), (62, 327717), (78, 260493), (93, 218478), (117, 173662), (186, 109239), (234, 86831), (279, 72826), (403, 50418), (558, 36413), (806, 25209), (1209, 16806), (2418, 8403), (2801, 7254), (3627, 5602)]