12823515

素因数分解:

$3^4\times 5^1\times {\mathrm{31663}}^1$

素因数の和:31680

約数の個数: 20

約数和(自身を含む): 22988064

約数和(自身を除く): 10164549

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31663, 94989, 158315, 284967, 474945, 854901, 1424835, 2564703, 4274505, 12823515]

約数ペア:

[(1, 12823515), (3, 4274505), (5, 2564703), (9, 1424835), (15, 854901), (27, 474945), (45, 284967), (81, 158315), (135, 94989), (405, 31663)]