20565215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{2239}}^1$

素因数の和:2422

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 6529825

約数列:

[1, 5, 11, 55, 167, 835, 1837, 2239, 9185, 11195, 24629, 123145, 373913, 1869565, 4113043, 20565215]

約数ペア:

[(1, 20565215), (5, 4113043), (11, 1869565), (55, 373913), (167, 123145), (835, 24629), (1837, 11195), (2239, 9185)]