1389788231

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{1609}}^1$

素因数の和:1923

約数の個数: 24

約数和(自身を含む): 1591002000

約数和(自身を除く): 201213769

約数列:

[1, 13, 19, 169, 247, 269, 1609, 3211, 3497, 5111, 20917, 30571, 45461, 66443, 271921, 397423, 432821, 863759, 5166499, 5626673, 8223599, 73146749, 106906787, 1389788231]

約数ペア:

[(1, 1389788231), (13, 106906787), (19, 73146749), (169, 8223599), (247, 5626673), (269, 5166499), (1609, 863759), (3211, 432821), (3497, 397423), (5111, 271921), (20917, 66443), (30571, 45461)]