138835215

素因数分解:

$3^4\times 5^1\times {\mathrm{342803}}^1$

素因数の和:342820

約数の個数: 20

約数和(自身を含む): 248875704

約数和(自身を除く): 110040489

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 342803, 1028409, 1714015, 3085227, 5142045, 9255681, 15426135, 27767043, 46278405, 138835215]

約数ペア:

[(1, 138835215), (3, 46278405), (5, 27767043), (9, 15426135), (15, 9255681), (27, 5142045), (45, 3085227), (81, 1714015), (135, 1028409), (405, 342803)]