20720554

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{1531}}^1$

素因数の和:1701

約数の個数: 16

約数和(自身を含む): 31877856

約数和(自身を除く): 11157302

約数列:

[1, 2, 67, 101, 134, 202, 1531, 3062, 6767, 13534, 102577, 154631, 205154, 309262, 10360277, 20720554]

約数ペア:

[(1, 20720554), (2, 10360277), (67, 309262), (101, 205154), (134, 154631), (202, 102577), (1531, 13534), (3062, 6767)]