19492336

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71663}}^1$

素因数の和:71688

約数の個数: 20

約数和(自身を含む): 39988512

約数和(自身を除く): 20496176

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71663, 143326, 286652, 573304, 1146608, 1218271, 2436542, 4873084, 9746168, 19492336]

約数ペア:

[(1, 19492336), (2, 9746168), (4, 4873084), (8, 2436542), (16, 1218271), (17, 1146608), (34, 573304), (68, 286652), (136, 143326), (272, 71663)]