21242019967

素因数分解:

$7^1\times {\mathrm{631}}^1\times {\mathrm{647}}^1\times {\mathrm{7433}}^1$

素因数の和:8718

約数の個数: 16

約数和(自身を含む): 24355924992

約数和(自身を除く): 3113905025

約数列:

[1, 7, 631, 647, 4417, 4529, 7433, 52031, 408257, 2857799, 4690223, 4809151, 32831561, 33664057, 3034574281, 21242019967]

約数ペア:

[(1, 21242019967), (7, 3034574281), (631, 33664057), (647, 32831561), (4417, 4809151), (4529, 4690223), (7433, 2857799), (52031, 408257)]