21086776

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39341}}^1$

素因数の和:39414

約数の個数: 16

約数和(自身を含む): 40128840

約数和(自身を除く): 19042064

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39341, 78682, 157364, 314728, 2635847, 5271694, 10543388, 21086776]

約数ペア:

[(1, 21086776), (2, 10543388), (4, 5271694), (8, 2635847), (67, 314728), (134, 157364), (268, 78682), (536, 39341)]