20777936

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:459

約数の個数: 40

約数和(自身を含む): 41973504

約数和(自身を除く): 21195568

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 163, 248, 257, 326, 496, 514, 652, 1028, 1304, 2056, 2608, 4112, 5053, 7967, 10106, 15934, 20212, 31868, 40424, 41891, 63736, 80848, 83782, 127472, 167564, 335128, 670256, 1298621, 2597242, 5194484, 10388968, 20777936]

約数ペア:

[(1, 20777936), (2, 10388968), (4, 5194484), (8, 2597242), (16, 1298621), (31, 670256), (62, 335128), (124, 167564), (163, 127472), (248, 83782), (257, 80848), (326, 63736), (496, 41891), (514, 40424), (652, 31868), (1028, 20212), (1304, 15934), (2056, 10106), (2608, 7967), (4112, 5053)]