21146721

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{3229}}^1$

素因数の和:3328

約数の個数: 16

約数和(自身を含む): 29457600

約数和(自身を除く): 8310879

約数列:

[1, 3, 37, 59, 111, 177, 2183, 3229, 6549, 9687, 119473, 190511, 358419, 571533, 7048907, 21146721]

約数ペア:

[(1, 21146721), (3, 7048907), (37, 571533), (59, 358419), (111, 190511), (177, 119473), (2183, 9687), (3229, 6549)]