20851272

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{22277}}^1$

素因数の和:22302

約数の個数: 48

約数和(自身を含む): 60818940

約数和(自身を除く): 39967668

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 22277, 44554, 66831, 89108, 133662, 178216, 200493, 267324, 289601, 400986, 534648, 579202, 801972, 868803, 1158404, 1603944, 1737606, 2316808, 2606409, 3475212, 5212818, 6950424, 10425636, 20851272]

約数ペア:

[(1, 20851272), (2, 10425636), (3, 6950424), (4, 5212818), (6, 3475212), (8, 2606409), (9, 2316808), (12, 1737606), (13, 1603944), (18, 1158404), (24, 868803), (26, 801972), (36, 579202), (39, 534648), (52, 400986), (72, 289601), (78, 267324), (104, 200493), (117, 178216), (156, 133662), (234, 89108), (312, 66831), (468, 44554), (936, 22277)]