20553706

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8867}}^1$

素因数の和:8949

約数の個数: 16

約数和(自身を含む): 32988960

約数和(自身を除く): 12435254

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8867, 17734, 168473, 336946, 540887, 1081774, 10276853, 20553706]

約数ペア:

[(1, 20553706), (2, 10276853), (19, 1081774), (38, 540887), (61, 336946), (122, 168473), (1159, 17734), (2318, 8867)]