2102156955

素因数分解:

$3^4\times 5^1\times {\mathrm{5190511}}^1$

素因数の和:5190528

約数の個数: 20

約数和(自身を含む): 3768311712

約数和(自身を除く): 1666154757

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5190511, 15571533, 25952555, 46714599, 77857665, 140143797, 233572995, 420431391, 700718985, 2102156955]

約数ペア:

[(1, 2102156955), (3, 700718985), (5, 420431391), (9, 233572995), (15, 140143797), (27, 77857665), (45, 46714599), (81, 25952555), (135, 15571533), (405, 5190511)]