21863595

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{112121}}^1$

素因数の和:112142

約数の個数: 16

約数和(自身を含む): 37672992

約数和(自身を除く): 15809397

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 112121, 336363, 560605, 1457573, 1681815, 4372719, 7287865, 21863595]

約数ペア:

[(1, 21863595), (3, 7287865), (5, 4372719), (13, 1681815), (15, 1457573), (39, 560605), (65, 336363), (195, 112121)]