20471935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12007}}^1$

素因数の和:12054

約数の個数: 16

約数和(自身を含む): 27666432

約数和(自身を除く): 7194497

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12007, 60035, 132077, 372217, 660385, 1861085, 4094387, 20471935]

約数ペア:

[(1, 20471935), (5, 4094387), (11, 1861085), (31, 660385), (55, 372217), (155, 132077), (341, 60035), (1705, 12007)]