21497911

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 25017984

約数和(自身を除く): 3520073

約数列:

[1, 17, 19, 31, 113, 323, 361, 527, 589, 1921, 2147, 3503, 6137, 10013, 11191, 36499, 40793, 59551, 66557, 190247, 693481, 1131469, 1264583, 21497911]

約数ペア:

[(1, 21497911), (17, 1264583), (19, 1131469), (31, 693481), (113, 190247), (323, 66557), (361, 59551), (527, 40793), (589, 36499), (1921, 11191), (2147, 10013), (3503, 6137)]