21606860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98213}}^1$

素因数の和:98233

約数の個数: 24

約数和(自身を含む): 49499856

約数和(自身を除く): 27892996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98213, 196426, 392852, 491065, 982130, 1080343, 1964260, 2160686, 4321372, 5401715, 10803430, 21606860]

約数ペア:

[(1, 21606860), (2, 10803430), (4, 5401715), (5, 4321372), (10, 2160686), (11, 1964260), (20, 1080343), (22, 982130), (44, 491065), (55, 392852), (110, 196426), (220, 98213)]