21939684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{140639}}^1$

素因数の和:140659

約数の個数: 24

約数和(自身を含む): 55130880

約数和(自身を除く): 33191196

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 140639, 281278, 421917, 562556, 843834, 1687668, 1828307, 3656614, 5484921, 7313228, 10969842, 21939684]

約数ペア:

[(1, 21939684), (2, 10969842), (3, 7313228), (4, 5484921), (6, 3656614), (12, 1828307), (13, 1687668), (26, 843834), (39, 562556), (52, 421917), (78, 281278), (156, 140639)]