20159645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{1021}}^1$

素因数の和:1396

約数の個数: 16

約数和(自身を含む): 26490240

約数和(自身を除く): 6330595

約数列:

[1, 5, 11, 55, 359, 1021, 1795, 3949, 5105, 11231, 19745, 56155, 366539, 1832695, 4031929, 20159645]

約数ペア:

[(1, 20159645), (5, 4031929), (11, 1832695), (55, 366539), (359, 56155), (1021, 19745), (1795, 11231), (3949, 5105)]