20603245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1609}}^1$

素因数の和:1824

約数の個数: 16

約数和(自身を含む): 26777520

約数和(自身を除く): 6174275

約数列:

[1, 5, 13, 65, 197, 985, 1609, 2561, 8045, 12805, 20917, 104585, 316973, 1584865, 4120649, 20603245]

約数ペア:

[(1, 20603245), (5, 4120649), (13, 1584865), (65, 316973), (197, 104585), (985, 20917), (1609, 12805), (2561, 8045)]