28307331

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:572

約数の個数: 36

約数和(自身を含む): 45562608

約数和(自身を除く): 17255277

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 169, 333, 481, 503, 507, 1443, 1509, 1521, 4329, 4527, 6253, 6539, 18611, 18759, 19617, 55833, 56277, 58851, 85007, 167499, 241943, 255021, 725829, 765063, 2177487, 3145259, 9435777, 28307331]

約数ペア:

[(1, 28307331), (3, 9435777), (9, 3145259), (13, 2177487), (37, 765063), (39, 725829), (111, 255021), (117, 241943), (169, 167499), (333, 85007), (481, 58851), (503, 56277), (507, 55833), (1443, 19617), (1509, 18759), (1521, 18611), (4329, 6539), (4527, 6253)]