21261736

素因数分解:

$2^3\times {\mathrm{419}}^1\times {\mathrm{6343}}^1$

素因数の和:6768

約数の個数: 16

約数和(自身を含む): 39967200

約数和(自身を除く): 18705464

約数列:

[1, 2, 4, 8, 419, 838, 1676, 3352, 6343, 12686, 25372, 50744, 2657717, 5315434, 10630868, 21261736]

約数ペア:

[(1, 21261736), (2, 10630868), (4, 5315434), (8, 2657717), (419, 50744), (838, 25372), (1676, 12686), (3352, 6343)]