19911009455

素因数分解:

$5^1\times {\mathrm{379}}^1\times {\mathrm{2143}}^1\times {\mathrm{4903}}^1$

素因数の和:7430

約数の個数: 16

約数和(自身を含む): 23972321280

約数和(自身を除く): 4061311825

約数列:

[1, 5, 379, 1895, 2143, 4903, 10715, 24515, 812197, 1858237, 4060985, 9291185, 10507129, 52535645, 3982201891, 19911009455]

約数ペア:

[(1, 19911009455), (5, 3982201891), (379, 52535645), (1895, 10507129), (2143, 9291185), (4903, 4060985), (10715, 1858237), (24515, 812197)]