18915695631

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4922117}}^1$

素因数の和:4922191

約数の個数: 24

約数和(自身を含む): 31737816864

約数和(自身を除く): 12822121233

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 4922117, 14766351, 34454819, 44299053, 103364457, 300249137, 310093371, 900747411, 2101743959, 2702242233, 6305231877, 18915695631]

約数ペア:

[(1, 18915695631), (3, 6305231877), (7, 2702242233), (9, 2101743959), (21, 900747411), (61, 310093371), (63, 300249137), (183, 103364457), (427, 44299053), (549, 34454819), (1281, 14766351), (3843, 4922117)]