21693860

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10531}}^1$

素因数の和:10643

約数の個数: 24

約数和(自身を含む): 46003776

約数和(自身を除く): 24309916

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 10531, 21062, 42124, 52655, 105310, 210620, 1084693, 2169386, 4338772, 5423465, 10846930, 21693860]

約数ペア:

[(1, 21693860), (2, 10846930), (4, 5423465), (5, 4338772), (10, 2169386), (20, 1084693), (103, 210620), (206, 105310), (412, 52655), (515, 42124), (1030, 21062), (2060, 10531)]