21258618

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{66851}}^1$

素因数の和:66909

約数の個数: 16

約数和(自身を含む): 43320096

約数和(自身を除く): 22061478

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 66851, 133702, 200553, 401106, 3543103, 7086206, 10629309, 21258618]

約数ペア:

[(1, 21258618), (2, 10629309), (3, 7086206), (6, 3543103), (53, 401106), (106, 200553), (159, 133702), (318, 66851)]