21731247

素因数分解:

$3^5\times {\mathrm{37}}^1\times {\mathrm{2417}}^1$

素因数の和:2469

約数の個数: 24

約数和(自身を含む): 33445776

約数和(自身を除く): 11714529

約数列:

[1, 3, 9, 27, 37, 81, 111, 243, 333, 999, 2417, 2997, 7251, 8991, 21753, 65259, 89429, 195777, 268287, 587331, 804861, 2414583, 7243749, 21731247]

約数ペア:

[(1, 21731247), (3, 7243749), (9, 2414583), (27, 804861), (37, 587331), (81, 268287), (111, 195777), (243, 89429), (333, 65259), (999, 21753), (2417, 8991), (2997, 7251)]