19818056

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{145721}}^1$

素因数の和:145744

約数の個数: 16

約数和(自身を含む): 39344940

約数和(自身を除く): 19526884

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 145721, 291442, 582884, 1165768, 2477257, 4954514, 9909028, 19818056]

約数ペア:

[(1, 19818056), (2, 9909028), (4, 4954514), (8, 2477257), (17, 1165768), (34, 582884), (68, 291442), (136, 145721)]