20981774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{56101}}^1$

素因数の和:56131

約数の個数: 16

約数和(自身を含む): 36354096

約数和(自身を除く): 15372322

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 56101, 112202, 617111, 953717, 1234222, 1907434, 10490887, 20981774]

約数ペア:

[(1, 20981774), (2, 10490887), (11, 1907434), (17, 1234222), (22, 953717), (34, 617111), (187, 112202), (374, 56101)]