9899991

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 15004080

約数和(自身を除く): 5104089

約数列:

[1, 3, 9, 29, 83, 87, 249, 261, 457, 747, 1371, 2407, 4113, 7221, 13253, 21663, 37931, 39759, 113793, 119277, 341379, 1099999, 3299997, 9899991]

約数ペア:

[(1, 9899991), (3, 3299997), (9, 1099999), (29, 341379), (83, 119277), (87, 113793), (249, 39759), (261, 37931), (457, 21663), (747, 13253), (1371, 7221), (2407, 4113)]