128998161

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{2347}}^1$

素因数の和:2581

約数の個数: 24

約数和(自身を含む): 193400064

約数和(自身を除く): 64401903

約数列:

[1, 3, 9, 31, 93, 197, 279, 591, 1773, 2347, 6107, 7041, 18321, 21123, 54963, 72757, 218271, 462359, 654813, 1387077, 4161231, 14333129, 42999387, 128998161]

約数ペア:

[(1, 128998161), (3, 42999387), (9, 14333129), (31, 4161231), (93, 1387077), (197, 654813), (279, 462359), (591, 218271), (1773, 72757), (2347, 54963), (6107, 21123), (7041, 18321)]