15591615

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2161}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 27604416

約数和(自身を除く): 12012801

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2161, 2405, 6483, 7215, 10805, 28093, 32415, 79957, 84279, 140465, 239871, 399785, 421395, 1039441, 1199355, 3118323, 5197205, 15591615]

約数ペア:

[(1, 15591615), (3, 5197205), (5, 3118323), (13, 1199355), (15, 1039441), (37, 421395), (39, 399785), (65, 239871), (111, 140465), (185, 84279), (195, 79957), (481, 32415), (555, 28093), (1443, 10805), (2161, 7215), (2405, 6483)]