20525516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{683}}^2$

素因数の和:1381

約数の個数: 18

約数和(自身を含む): 39242532

約数和(自身を除く): 18717016

約数列:

[1, 2, 4, 11, 22, 44, 683, 1366, 2732, 7513, 15026, 30052, 466489, 932978, 1865956, 5131379, 10262758, 20525516]

約数ペア:

[(1, 20525516), (2, 10262758), (4, 5131379), (11, 1865956), (22, 932978), (44, 466489), (683, 30052), (1366, 15026), (2732, 7513)]