21644705

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3209}}^1$

素因数の和:3304

約数の個数: 16

約数和(自身を含む): 27734400

約数和(自身を除く): 6089695

約数列:

[1, 5, 19, 71, 95, 355, 1349, 3209, 6745, 16045, 60971, 227839, 304855, 1139195, 4328941, 21644705]

約数ペア:

[(1, 21644705), (5, 4328941), (19, 1139195), (71, 304855), (95, 227839), (355, 60971), (1349, 16045), (3209, 6745)]