21798405

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4703}}^1$

素因数の和:4817

約数の個数: 24

約数和(自身を含む): 38158848

約数和(自身を除く): 16360443

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4635, 4703, 14109, 23515, 42327, 70545, 211635, 484409, 1453227, 2422045, 4359681, 7266135, 21798405]

約数ペア:

[(1, 21798405), (3, 7266135), (5, 4359681), (9, 2422045), (15, 1453227), (45, 484409), (103, 211635), (309, 70545), (515, 42327), (927, 23515), (1545, 14109), (4635, 4703)]