217872473

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{599}}^1$

素因数の和:1197

約数の個数: 24

約数和(自身を含む): 273873600

約数和(自身を除く): 56001127

約数列:

[1, 7, 13, 49, 91, 571, 599, 637, 3997, 4193, 7423, 7787, 27979, 29351, 51961, 54509, 342029, 363727, 381563, 2394203, 4446377, 16759421, 31124639, 217872473]

約数ペア:

[(1, 217872473), (7, 31124639), (13, 16759421), (49, 4446377), (91, 2394203), (571, 381563), (599, 363727), (637, 342029), (3997, 54509), (4193, 51961), (7423, 29351), (7787, 27979)]