20828656

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31751}}^1$

素因数の和:31800

約数の個数: 20

約数和(自身を含む): 41341104

約数和(自身を除く): 20512448

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31751, 63502, 127004, 254008, 508016, 1301791, 2603582, 5207164, 10414328, 20828656]

約数ペア:

[(1, 20828656), (2, 10414328), (4, 5207164), (8, 2603582), (16, 1301791), (41, 508016), (82, 254008), (164, 127004), (328, 63502), (656, 31751)]