19818328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{145723}}^1$

素因数の和:145746

約数の個数: 16

約数和(自身を含む): 39345480

約数和(自身を除く): 19527152

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 145723, 291446, 582892, 1165784, 2477291, 4954582, 9909164, 19818328]

約数ペア:

[(1, 19818328), (2, 9909164), (4, 4954582), (8, 2477291), (17, 1165784), (34, 582892), (68, 291446), (136, 145723)]