21675628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{416839}}^1$

素因数の和:416856

約数の個数: 12

約数和(自身を含む): 40850320

約数和(自身を除く): 19174692

約数列:

[1, 2, 4, 13, 26, 52, 416839, 833678, 1667356, 5418907, 10837814, 21675628]

約数ペア:

[(1, 21675628), (2, 10837814), (4, 5418907), (13, 1667356), (26, 833678), (52, 416839)]