21000948072

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67310731}}^1$

素因数の和:67310753

約数の個数: 32

約数和(自身を含む): 56541014880

約数和(自身を除く): 35540066808

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67310731, 134621462, 201932193, 269242924, 403864386, 538485848, 807728772, 875039503, 1615457544, 1750079006, 2625118509, 3500158012, 5250237018, 7000316024, 10500474036, 21000948072]

約数ペア:

[(1, 21000948072), (2, 10500474036), (3, 7000316024), (4, 5250237018), (6, 3500158012), (8, 2625118509), (12, 1750079006), (13, 1615457544), (24, 875039503), (26, 807728772), (39, 538485848), (52, 403864386), (78, 269242924), (104, 201932193), (156, 134621462), (312, 67310731)]