21483820

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4817}}^1$

素因数の和:5049

約数の個数: 24

約数和(自身を含む): 45327744

約数和(自身を除く): 23843924

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 4817, 9634, 19268, 24085, 48170, 96340, 1074191, 2148382, 4296764, 5370955, 10741910, 21483820]

約数ペア:

[(1, 21483820), (2, 10741910), (4, 5370955), (5, 4296764), (10, 2148382), (20, 1074191), (223, 96340), (446, 48170), (892, 24085), (1115, 19268), (2230, 9634), (4460, 4817)]