21497113

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1409}}^1$

素因数の和:1512

約数の個数: 16

約数和(自身を含む): 25041600

約数和(自身を除く): 3544487

約数列:

[1, 11, 19, 73, 209, 803, 1387, 1409, 15257, 15499, 26771, 102857, 294481, 1131427, 1954283, 21497113]

約数ペア:

[(1, 21497113), (11, 1954283), (19, 1131427), (73, 294481), (209, 102857), (803, 26771), (1387, 15499), (1409, 15257)]