21553215

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{46351}}^1$

素因数の和:46390

約数の個数: 16

約数和(自身を含む): 35598336

約数和(自身を除く): 14045121

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 46351, 139053, 231755, 695265, 1436881, 4310643, 7184405, 21553215]

約数ペア:

[(1, 21553215), (3, 7184405), (5, 4310643), (15, 1436881), (31, 695265), (93, 231755), (155, 139053), (465, 46351)]