19882904

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80173}}^1$

素因数の和:80210

約数の個数: 16

約数和(自身を含む): 38483520

約数和(自身を除く): 18600616

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80173, 160346, 320692, 641384, 2485363, 4970726, 9941452, 19882904]

約数ペア:

[(1, 19882904), (2, 9941452), (4, 4970726), (8, 2485363), (31, 641384), (62, 320692), (124, 160346), (248, 80173)]