19882791

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 29714256

約数和(自身を除く): 9831465

約数列:

[1, 3, 9, 53, 73, 159, 219, 477, 571, 657, 1713, 3869, 5139, 11607, 30263, 34821, 41683, 90789, 125049, 272367, 375147, 2209199, 6627597, 19882791]

約数ペア:

[(1, 19882791), (3, 6627597), (9, 2209199), (53, 375147), (73, 272367), (159, 125049), (219, 90789), (477, 41683), (571, 34821), (657, 30263), (1713, 11607), (3869, 5139)]