19171940

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1721}}^1$

素因数の和:2287

約数の個数: 24

約数和(自身を含む): 40356792

約数和(自身を除く): 21184852

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 1721, 2228, 2785, 3442, 5570, 6884, 8605, 11140, 17210, 34420, 958597, 1917194, 3834388, 4792985, 9585970, 19171940]

約数ペア:

[(1, 19171940), (2, 9585970), (4, 4792985), (5, 3834388), (10, 1917194), (20, 958597), (557, 34420), (1114, 17210), (1721, 11140), (2228, 8605), (2785, 6884), (3442, 5570)]