20992455

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42409}}^1$

素因数の和:42431

約数の個数: 24

約数和(自身を含む): 39695760

約数和(自身を除く): 18703305

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42409, 127227, 212045, 381681, 466499, 636135, 1399497, 1908405, 2332495, 4198491, 6997485, 20992455]

約数ペア:

[(1, 20992455), (3, 6997485), (5, 4198491), (9, 2332495), (11, 1908405), (15, 1399497), (33, 636135), (45, 466499), (55, 381681), (99, 212045), (165, 127227), (495, 42409)]