18504213

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 32328576

約数和(自身を除く): 13824363

約数列:

[1, 3, 7, 13, 21, 23, 39, 49, 69, 91, 147, 161, 273, 299, 421, 483, 637, 897, 1127, 1263, 1911, 2093, 2947, 3381, 5473, 6279, 8841, 9683, 14651, 16419, 20629, 29049, 38311, 43953, 61887, 67781, 114933, 125879, 203343, 268177, 377637, 474467, 804531, 881153, 1423401, 2643459, 6168071, 18504213]

約数ペア:

[(1, 18504213), (3, 6168071), (7, 2643459), (13, 1423401), (21, 881153), (23, 804531), (39, 474467), (49, 377637), (69, 268177), (91, 203343), (147, 125879), (161, 114933), (273, 67781), (299, 61887), (421, 43953), (483, 38311), (637, 29049), (897, 20629), (1127, 16419), (1263, 14651), (1911, 9683), (2093, 8841), (2947, 6279), (3381, 5473)]