21018962295

素因数分解:

$3^3\times 5^1\times {\mathrm{155696017}}^1$

素因数の和:155696031

約数の個数: 16

約数和(自身を含む): 37367044320

約数和(自身を除く): 16348082025

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 155696017, 467088051, 778480085, 1401264153, 2335440255, 4203792459, 7006320765, 21018962295]

約数ペア:

[(1, 21018962295), (3, 7006320765), (5, 4203792459), (9, 2335440255), (15, 1401264153), (27, 778480085), (45, 467088051), (135, 155696017)]