21018051

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 31253040

約数和(自身を除く): 10234989

約数列:

[1, 3, 9, 53, 139, 159, 317, 417, 477, 951, 1251, 2853, 7367, 16801, 22101, 44063, 50403, 66303, 132189, 151209, 396567, 2335339, 7006017, 21018051]

約数ペア:

[(1, 21018051), (3, 7006017), (9, 2335339), (53, 396567), (139, 151209), (159, 132189), (317, 66303), (417, 50403), (477, 44063), (951, 22101), (1251, 16801), (2853, 7367)]