21049782

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1279}}^1$

素因数の和:1508

約数の個数: 32

約数和(自身を含む): 45588480

約数和(自身を除く): 24538698

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 211, 422, 633, 1266, 1279, 2558, 2743, 3837, 5486, 7674, 8229, 16458, 16627, 33254, 49881, 99762, 269869, 539738, 809607, 1619214, 3508297, 7016594, 10524891, 21049782]

約数ペア:

[(1, 21049782), (2, 10524891), (3, 7016594), (6, 3508297), (13, 1619214), (26, 809607), (39, 539738), (78, 269869), (211, 99762), (422, 49881), (633, 33254), (1266, 16627), (1279, 16458), (2558, 8229), (2743, 7674), (3837, 5486)]