19354940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87977}}^1$

素因数の和:87997

約数の個数: 24

約数和(自身を含む): 44340912

約数和(自身を除く): 24985972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87977, 175954, 351908, 439885, 879770, 967747, 1759540, 1935494, 3870988, 4838735, 9677470, 19354940]

約数ペア:

[(1, 19354940), (2, 9677470), (4, 4838735), (5, 3870988), (10, 1935494), (11, 1759540), (20, 967747), (22, 879770), (44, 439885), (55, 351908), (110, 175954), (220, 87977)]