21245304

素因数分解:

$2^3\times 3^1\times {\mathrm{641}}^1\times {\mathrm{1381}}^1$

素因数の和:2031

約数の個数: 32

約数和(自身を含む): 53234640

約数和(自身を除く): 31989336

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 641, 1282, 1381, 1923, 2564, 2762, 3846, 4143, 5128, 5524, 7692, 8286, 11048, 15384, 16572, 33144, 885221, 1770442, 2655663, 3540884, 5311326, 7081768, 10622652, 21245304]

約数ペア:

[(1, 21245304), (2, 10622652), (3, 7081768), (4, 5311326), (6, 3540884), (8, 2655663), (12, 1770442), (24, 885221), (641, 33144), (1282, 16572), (1381, 15384), (1923, 11048), (2564, 8286), (2762, 7692), (3846, 5524), (4143, 5128)]