20218085258

素因数分解:

$2^1\times 7^1\times {\mathrm{4001}}^1\times {\mathrm{360947}}^1$

素因数の和:364957

約数の個数: 16

約数和(自身を含む): 34668333504

約数和(自身を除く): 14450248246

約数列:

[1, 2, 7, 14, 4001, 8002, 28007, 56014, 360947, 721894, 2526629, 5053258, 1444148947, 2888297894, 10109042629, 20218085258]

約数ペア:

[(1, 20218085258), (2, 10109042629), (7, 2888297894), (14, 1444148947), (4001, 5053258), (8002, 2526629), (28007, 721894), (56014, 360947)]