21766495

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 28529280

約数和(自身を除く): 6762785

約数列:

[1, 5, 19, 31, 95, 155, 361, 389, 589, 1805, 1945, 2945, 7391, 11191, 12059, 36955, 55955, 60295, 140429, 229121, 702145, 1145605, 4353299, 21766495]

約数ペア:

[(1, 21766495), (5, 4353299), (19, 1145605), (31, 702145), (95, 229121), (155, 140429), (361, 60295), (389, 55955), (589, 36955), (1805, 12059), (1945, 11191), (2945, 7391)]