18725721

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{52453}}^1$

素因数の和:52480

約数の個数: 16

約数和(自身を含む): 30213504

約数和(自身を除く): 11487783

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 52453, 157359, 367171, 891701, 1101513, 2675103, 6241907, 18725721]

約数ペア:

[(1, 18725721), (3, 6241907), (7, 2675103), (17, 1101513), (21, 891701), (51, 367171), (119, 157359), (357, 52453)]