21332140

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9439}}^1$

素因数の和:9561

約数の個数: 24

約数和(自身を含む): 45198720

約数和(自身を除く): 23866580

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9439, 18878, 37756, 47195, 94390, 188780, 1066607, 2133214, 4266428, 5333035, 10666070, 21332140]

約数ペア:

[(1, 21332140), (2, 10666070), (4, 5333035), (5, 4266428), (10, 2133214), (20, 1066607), (113, 188780), (226, 94390), (452, 47195), (565, 37756), (1130, 18878), (2260, 9439)]