15915809

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 20939520

約数和(自身を除く): 5023711

約数列:

[1, 7, 13, 29, 37, 91, 163, 203, 259, 377, 481, 1073, 1141, 2119, 2639, 3367, 4727, 6031, 7511, 13949, 14833, 33089, 42217, 61451, 78403, 97643, 174899, 430157, 548821, 1224293, 2273687, 15915809]

約数ペア:

[(1, 15915809), (7, 2273687), (13, 1224293), (29, 548821), (37, 430157), (91, 174899), (163, 97643), (203, 78403), (259, 61451), (377, 42217), (481, 33089), (1073, 14833), (1141, 13949), (2119, 7511), (2639, 6031), (3367, 4727)]