639476439

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{4547}}^1$

素因数の和:4775

約数の個数: 32

約数和(自身を含む): 1006526976

約数和(自身を除く): 367050537

約数列:

[1, 3, 7, 21, 37, 111, 181, 259, 543, 777, 1267, 3801, 4547, 6697, 13641, 20091, 31829, 46879, 95487, 140637, 168239, 504717, 823007, 1177673, 2469021, 3533019, 5761049, 17283147, 30451259, 91353777, 213158813, 639476439]

約数ペア:

[(1, 639476439), (3, 213158813), (7, 91353777), (21, 30451259), (37, 17283147), (111, 5761049), (181, 3533019), (259, 2469021), (543, 1177673), (777, 823007), (1267, 504717), (3801, 168239), (4547, 140637), (6697, 95487), (13641, 46879), (20091, 31829)]