19912090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181019}}^1$

素因数の和:181037

約数の個数: 16

約数和(自身を含む): 39100320

約数和(自身を除く): 19188230

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181019, 362038, 905095, 1810190, 1991209, 3982418, 9956045, 19912090]

約数ペア:

[(1, 19912090), (2, 9956045), (5, 3982418), (10, 1991209), (11, 1810190), (22, 905095), (55, 362038), (110, 181019)]