1888515

素因数分解:

$3^4\times 5^1\times {\mathrm{4663}}^1$

素因数の和:4680

約数の個数: 20

約数和(自身を含む): 3386064

約数和(自身を除く): 1497549

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4663, 13989, 23315, 41967, 69945, 125901, 209835, 377703, 629505, 1888515]

約数ペア:

[(1, 1888515), (3, 629505), (5, 377703), (9, 209835), (15, 125901), (27, 69945), (45, 41967), (81, 23315), (135, 13989), (405, 4663)]