20648912

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31477}}^1$

素因数の和:31526

約数の個数: 20

約数和(自身を含む): 40984356

約数和(自身を除く): 20335444

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31477, 62954, 125908, 251816, 503632, 1290557, 2581114, 5162228, 10324456, 20648912]

約数ペア:

[(1, 20648912), (2, 10324456), (4, 5162228), (8, 2581114), (16, 1290557), (41, 503632), (82, 251816), (164, 125908), (328, 62954), (656, 31477)]