20196872

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81439}}^1$

素因数の和:81476

約数の個数: 16

約数和(自身を含む): 39091200

約数和(自身を除く): 18894328

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81439, 162878, 325756, 651512, 2524609, 5049218, 10098436, 20196872]

約数ペア:

[(1, 20196872), (2, 10098436), (4, 5049218), (8, 2524609), (31, 651512), (62, 325756), (124, 162878), (248, 81439)]