21537868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25763}}^1$

素因数の和:25797

約数の個数: 24

約数和(自身を含む): 43283520

約数和(自身を除く): 21745652

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25763, 51526, 103052, 283393, 489497, 566786, 978994, 1133572, 1957988, 5384467, 10768934, 21537868]

約数ペア:

[(1, 21537868), (2, 10768934), (4, 5384467), (11, 1957988), (19, 1133572), (22, 978994), (38, 566786), (44, 489497), (76, 283393), (209, 103052), (418, 51526), (836, 25763)]