221412860

素因数分解:

$2^2\times 5^1\times {\mathrm{1811}}^1\times {\mathrm{6113}}^1$

素因数の和:7933

約数の個数: 24

約数和(自身を含む): 465299856

約数和(自身を除く): 243886996

約数列:

[1, 2, 4, 5, 10, 20, 1811, 3622, 6113, 7244, 9055, 12226, 18110, 24452, 30565, 36220, 61130, 122260, 11070643, 22141286, 44282572, 55353215, 110706430, 221412860]

約数ペア:

[(1, 221412860), (2, 110706430), (4, 55353215), (5, 44282572), (10, 22141286), (20, 11070643), (1811, 122260), (3622, 61130), (6113, 36220), (7244, 30565), (9055, 24452), (12226, 18110)]