31159821

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3137}}^1$

素因数の和:3201

約数の個数: 32

約数和(自身を含む): 53019648

約数和(自身を除く): 21859827

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 301, 473, 903, 1419, 3137, 3311, 9411, 9933, 21959, 34507, 65877, 103521, 134891, 241549, 404673, 724647, 944237, 1483801, 2832711, 4451403, 10386607, 31159821]

約数ペア:

[(1, 31159821), (3, 10386607), (7, 4451403), (11, 2832711), (21, 1483801), (33, 944237), (43, 724647), (77, 404673), (129, 241549), (231, 134891), (301, 103521), (473, 65877), (903, 34507), (1419, 21959), (3137, 9933), (3311, 9411)]