21630548

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1877}}^1$

素因数の和:1991

約数の個数: 24

約数和(自身を含む): 39332832

約数和(自身を除く): 17702284

約数列:

[1, 2, 4, 43, 67, 86, 134, 172, 268, 1877, 2881, 3754, 5762, 7508, 11524, 80711, 125759, 161422, 251518, 322844, 503036, 5407637, 10815274, 21630548]

約数ペア:

[(1, 21630548), (2, 10815274), (4, 5407637), (43, 503036), (67, 322844), (86, 251518), (134, 161422), (172, 125759), (268, 80711), (1877, 11524), (2881, 7508), (3754, 5762)]