215658045

素因数分解:

$3^4\times 5^1\times {\mathrm{532489}}^1$

素因数の和:532506

約数の個数: 20

約数和(自身を含む): 386587740

約数和(自身を除く): 170929695

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 532489, 1597467, 2662445, 4792401, 7987335, 14377203, 23962005, 43131609, 71886015, 215658045]

約数ペア:

[(1, 215658045), (3, 71886015), (5, 43131609), (9, 23962005), (15, 14377203), (27, 7987335), (45, 4792401), (81, 2662445), (135, 1597467), (405, 532489)]