1021013505

素因数分解:

$3^4\times 5^1\times {\mathrm{2521021}}^1$

素因数の和:2521038

約数の個数: 20

約数和(自身を含む): 1830261972

約数和(自身を除く): 809248467

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2521021, 7563063, 12605105, 22689189, 37815315, 68067567, 113445945, 204202701, 340337835, 1021013505]

約数ペア:

[(1, 1021013505), (3, 340337835), (5, 204202701), (9, 113445945), (15, 68067567), (27, 37815315), (45, 22689189), (81, 12605105), (135, 7563063), (405, 2521021)]