138878131

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{5309}}^1$

素因数の和:5454

約数の個数: 16

約数和(自身を含む): 164652480

約数和(自身を除く): 25774349

約数列:

[1, 7, 37, 101, 259, 707, 3737, 5309, 26159, 37163, 196433, 536209, 1375031, 3753463, 19839733, 138878131]

約数ペア:

[(1, 138878131), (7, 19839733), (37, 3753463), (101, 1375031), (259, 536209), (707, 196433), (3737, 37163), (5309, 26159)]