18453981

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2939}}^1$

素因数の和:2985

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 13156899

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 2939, 6279, 8817, 20573, 38207, 61719, 67597, 114621, 202791, 267449, 473179, 802347, 878761, 1419537, 2636283, 6151327, 18453981]

約数ペア:

[(1, 18453981), (3, 6151327), (7, 2636283), (13, 1419537), (21, 878761), (23, 802347), (39, 473179), (69, 267449), (91, 202791), (161, 114621), (273, 67597), (299, 61719), (483, 38207), (897, 20573), (2093, 8817), (2939, 6279)]