21915345

素因数分解:

$3^1\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1301}}^1$

素因数の和:2432

約数の個数: 16

約数和(自身を含む): 35122752

約数和(自身を除く): 13207407

約数列:

[1, 3, 5, 15, 1123, 1301, 3369, 3903, 5615, 6505, 16845, 19515, 1461023, 4383069, 7305115, 21915345]

約数ペア:

[(1, 21915345), (3, 7305115), (5, 4383069), (15, 1461023), (1123, 19515), (1301, 16845), (3369, 6505), (3903, 5615)]