18223737

素因数分解:

$3^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{821}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 28487232

約数和(自身を除く): 10263495

約数列:

[1, 3, 7, 21, 49, 147, 151, 453, 821, 1057, 2463, 3171, 5747, 7399, 17241, 22197, 40229, 120687, 123971, 371913, 867797, 2603391, 6074579, 18223737]

約数ペア:

[(1, 18223737), (3, 6074579), (7, 2603391), (21, 867797), (49, 371913), (147, 123971), (151, 120687), (453, 40229), (821, 22197), (1057, 17241), (2463, 7399), (3171, 5747)]