19453940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{88427}}^1$

素因数の和:88447

約数の個数: 24

約数和(自身を含む): 44567712

約数和(自身を除く): 25113772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 88427, 176854, 353708, 442135, 884270, 972697, 1768540, 1945394, 3890788, 4863485, 9726970, 19453940]

約数ペア:

[(1, 19453940), (2, 9726970), (4, 4863485), (5, 3890788), (10, 1945394), (11, 1768540), (20, 972697), (22, 884270), (44, 442135), (55, 353708), (110, 176854), (220, 88427)]