21831860

素因数分解:

$2^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{2521}}^1$

素因数の和:2963

約数の個数: 24

約数和(自身を含む): 45971016

約数和(自身を除く): 24139156

約数列:

[1, 2, 4, 5, 10, 20, 433, 866, 1732, 2165, 2521, 4330, 5042, 8660, 10084, 12605, 25210, 50420, 1091593, 2183186, 4366372, 5457965, 10915930, 21831860]

約数ペア:

[(1, 21831860), (2, 10915930), (4, 5457965), (5, 4366372), (10, 2183186), (20, 1091593), (433, 50420), (866, 25210), (1732, 12605), (2165, 10084), (2521, 8660), (4330, 5042)]