15715215

素因数分解:

$3^4\times 5^1\times {\mathrm{38803}}^1$

素因数の和:38820

約数の個数: 20

約数和(自身を含む): 28171704

約数和(自身を除く): 12456489

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 38803, 116409, 194015, 349227, 582045, 1047681, 1746135, 3143043, 5238405, 15715215]

約数ペア:

[(1, 15715215), (3, 5238405), (5, 3143043), (9, 1746135), (15, 1047681), (27, 582045), (45, 349227), (81, 194015), (135, 116409), (405, 38803)]