19798642

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{3709}}^1$

素因数の和:3885

約数の個数: 16

約数和(自身を含む): 31653720

約数和(自身を除く): 11855078

約数列:

[1, 2, 17, 34, 157, 314, 2669, 3709, 5338, 7418, 63053, 126106, 582313, 1164626, 9899321, 19798642]

約数ペア:

[(1, 19798642), (2, 9899321), (17, 1164626), (34, 582313), (157, 126106), (314, 63053), (2669, 7418), (3709, 5338)]