21158007

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{4801}}^1$

素因数の和:4930

約数の個数: 16

約数和(自身を含む): 30655968

約数和(自身を除く): 9497961

約数列:

[1, 3, 13, 39, 113, 339, 1469, 4407, 4801, 14403, 62413, 187239, 542513, 1627539, 7052669, 21158007]

約数ペア:

[(1, 21158007), (3, 7052669), (13, 1627539), (39, 542513), (113, 187239), (339, 62413), (1469, 14403), (4407, 4801)]