21863105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 8981695

約数列:

[1, 5, 11, 17, 55, 67, 85, 187, 335, 349, 737, 935, 1139, 1745, 3685, 3839, 5695, 5933, 12529, 19195, 23383, 29665, 62645, 65263, 116915, 257213, 326315, 397511, 1286065, 1987555, 4372621, 21863105]

約数ペア:

[(1, 21863105), (5, 4372621), (11, 1987555), (17, 1286065), (55, 397511), (67, 326315), (85, 257213), (187, 116915), (335, 65263), (349, 62645), (737, 29665), (935, 23383), (1139, 19195), (1745, 12529), (3685, 5933), (3839, 5695)]