21844684

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 38984400

約数和(自身を除く): 17139716

約数列:

[1, 2, 4, 101, 139, 202, 278, 389, 404, 556, 778, 1556, 14039, 28078, 39289, 54071, 56156, 78578, 108142, 157156, 216284, 5461171, 10922342, 21844684]

約数ペア:

[(1, 21844684), (2, 10922342), (4, 5461171), (101, 216284), (139, 157156), (202, 108142), (278, 78578), (389, 56156), (404, 54071), (556, 39289), (778, 28078), (1556, 14039)]