21402488

素因数分解:

$2^3\times {\mathrm{683}}^1\times {\mathrm{3917}}^1$

素因数の和:4606

約数の個数: 16

約数和(自身を含む): 40198680

約数和(自身を除く): 18796192

約数列:

[1, 2, 4, 8, 683, 1366, 2732, 3917, 5464, 7834, 15668, 31336, 2675311, 5350622, 10701244, 21402488]

約数ペア:

[(1, 21402488), (2, 10701244), (4, 5350622), (8, 2675311), (683, 31336), (1366, 15668), (2732, 7834), (3917, 5464)]