21398027

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4583}}^1$

素因数の和:4642

約数の個数: 16

約数和(自身を含む): 26403840

約数和(自身を除く): 5005813

約数列:

[1, 7, 23, 29, 161, 203, 667, 4583, 4669, 32081, 105409, 132907, 737863, 930349, 3056861, 21398027]

約数ペア:

[(1, 21398027), (7, 3056861), (23, 930349), (29, 737863), (161, 132907), (203, 105409), (667, 32081), (4583, 4669)]