21986360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{467}}^1$

素因数の和:596

約数の個数: 64

約数和(自身を含む): 54587520

約数和(自身を除く): 32601160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 107, 110, 214, 220, 428, 440, 467, 535, 856, 934, 1070, 1177, 1868, 2140, 2335, 2354, 3736, 4280, 4670, 4708, 5137, 5885, 9340, 9416, 10274, 11770, 18680, 20548, 23540, 25685, 41096, 47080, 49969, 51370, 99938, 102740, 199876, 205480, 249845, 399752, 499690, 549659, 999380, 1099318, 1998760, 2198636, 2748295, 4397272, 5496590, 10993180, 21986360]

約数ペア:

[(1, 21986360), (2, 10993180), (4, 5496590), (5, 4397272), (8, 2748295), (10, 2198636), (11, 1998760), (20, 1099318), (22, 999380), (40, 549659), (44, 499690), (55, 399752), (88, 249845), (107, 205480), (110, 199876), (214, 102740), (220, 99938), (428, 51370), (440, 49969), (467, 47080), (535, 41096), (856, 25685), (934, 23540), (1070, 20548), (1177, 18680), (1868, 11770), (2140, 10274), (2335, 9416), (2354, 9340), (3736, 5885), (4280, 5137), (4670, 4708)]