21130168

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37201}}^1$

素因数の和:37278

約数の個数: 16

約数和(自身を含む): 40178160

約数和(自身を除く): 19047992

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37201, 74402, 148804, 297608, 2641271, 5282542, 10565084, 21130168]

約数ペア:

[(1, 21130168), (2, 10565084), (4, 5282542), (8, 2641271), (71, 297608), (142, 148804), (284, 74402), (568, 37201)]