19403728

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{2411}}^1$

素因数の和:2922

約数の個数: 20

約数和(自身を含む): 37685088

約数和(自身を除く): 18281360

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 2411, 4024, 4822, 8048, 9644, 19288, 38576, 1212733, 2425466, 4850932, 9701864, 19403728]

約数ペア:

[(1, 19403728), (2, 9701864), (4, 4850932), (8, 2425466), (16, 1212733), (503, 38576), (1006, 19288), (2012, 9644), (2411, 8048), (4024, 4822)]