20915248

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31883}}^1$

素因数の和:31932

約数の個数: 20

約数和(自身を含む): 41512968

約数和(自身を除く): 20597720

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31883, 63766, 127532, 255064, 510128, 1307203, 2614406, 5228812, 10457624, 20915248]

約数ペア:

[(1, 20915248), (2, 10457624), (4, 5228812), (8, 2614406), (16, 1307203), (41, 510128), (82, 255064), (164, 127532), (328, 63766), (656, 31883)]