2021076765

素因数分解:

$3^4\times 5^1\times {\mathrm{4990313}}^1$

素因数の和:4990330

約数の個数: 20

約数和(自身を含む): 3622967964

約数和(自身を除く): 1601891199

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4990313, 14970939, 24951565, 44912817, 74854695, 134738451, 224564085, 404215353, 673692255, 2021076765]

約数ペア:

[(1, 2021076765), (3, 673692255), (5, 404215353), (9, 224564085), (15, 134738451), (27, 74854695), (45, 44912817), (81, 24951565), (135, 14970939), (405, 4990313)]