21556866

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{97103}}^1$

素因数の和:97145

約数の個数: 16

約数和(自身を含む): 44279424

約数和(自身を除く): 22722558

約数列:

[1, 2, 3, 6, 37, 74, 111, 222, 97103, 194206, 291309, 582618, 3592811, 7185622, 10778433, 21556866]

約数ペア:

[(1, 21556866), (2, 10778433), (3, 7185622), (6, 3592811), (37, 582618), (74, 291309), (111, 194206), (222, 97103)]