21116656

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119981}}^1$

素因数の和:120000

約数の個数: 20

約数和(自身を含む): 44633304

約数和(自身を除く): 23516648

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119981, 239962, 479924, 959848, 1319791, 1919696, 2639582, 5279164, 10558328, 21116656]

約数ペア:

[(1, 21116656), (2, 10558328), (4, 5279164), (8, 2639582), (11, 1919696), (16, 1319791), (22, 959848), (44, 479924), (88, 239962), (176, 119981)]