21192250

素因数分解:

$2^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{823}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 40105728

約数和(自身を除く): 18913478

約数列:

[1, 2, 5, 10, 25, 50, 103, 125, 206, 250, 515, 823, 1030, 1646, 2575, 4115, 5150, 8230, 12875, 20575, 25750, 41150, 84769, 102875, 169538, 205750, 423845, 847690, 2119225, 4238450, 10596125, 21192250]

約数ペア:

[(1, 21192250), (2, 10596125), (5, 4238450), (10, 2119225), (25, 847690), (50, 423845), (103, 205750), (125, 169538), (206, 102875), (250, 84769), (515, 41150), (823, 25750), (1030, 20575), (1646, 12875), (2575, 8230), (4115, 5150)]