25721104

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{39209}}^1$

素因数の和:39258

約数の個数: 20

約数和(自身を含む): 51051420

約数和(自身を除く): 25330316

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 39209, 78418, 156836, 313672, 627344, 1607569, 3215138, 6430276, 12860552, 25721104]

約数ペア:

[(1, 25721104), (2, 12860552), (4, 6430276), (8, 3215138), (16, 1607569), (41, 627344), (82, 313672), (164, 156836), (328, 78418), (656, 39209)]