21287336

素因数分解:

$2^3\times 7^1\times {\mathrm{380131}}^1$

素因数の和:380144

約数の個数: 16

約数和(自身を含む): 45615840

約数和(自身を除く): 24328504

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 380131, 760262, 1520524, 2660917, 3041048, 5321834, 10643668, 21287336]

約数ペア:

[(1, 21287336), (2, 10643668), (4, 5321834), (7, 3041048), (8, 2660917), (14, 1520524), (28, 760262), (56, 380131)]