21228765

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{19387}}^1$

素因数の和:19468

約数の個数: 16

約数和(自身を含む): 34433088

約数和(自身を除く): 13204323

約数列:

[1, 3, 5, 15, 73, 219, 365, 1095, 19387, 58161, 96935, 290805, 1415251, 4245753, 7076255, 21228765]

約数ペア:

[(1, 21228765), (3, 7076255), (5, 4245753), (15, 1415251), (73, 290805), (219, 96935), (365, 58161), (1095, 19387)]