21456884

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{59}}^2\times {\mathrm{67}}^1$

素因数の和:212

約数の個数: 36

約数和(自身を含む): 40452384

約数和(自身を除く): 18995500

約数列:

[1, 2, 4, 23, 46, 59, 67, 92, 118, 134, 236, 268, 1357, 1541, 2714, 3082, 3481, 3953, 5428, 6164, 6962, 7906, 13924, 15812, 80063, 90919, 160126, 181838, 233227, 320252, 363676, 466454, 932908, 5364221, 10728442, 21456884]

約数ペア:

[(1, 21456884), (2, 10728442), (4, 5364221), (23, 932908), (46, 466454), (59, 363676), (67, 320252), (92, 233227), (118, 181838), (134, 160126), (236, 90919), (268, 80063), (1357, 15812), (1541, 13924), (2714, 7906), (3082, 6962), (3481, 6164), (3953, 5428)]