20455479

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{563}}^1$

素因数の和:947

約数の個数: 24

約数和(自身を含む): 32378112

約数和(自身を除く): 11922633

約数列:

[1, 3, 9, 11, 33, 99, 367, 563, 1101, 1689, 3303, 4037, 5067, 6193, 12111, 18579, 36333, 55737, 206621, 619863, 1859589, 2272831, 6818493, 20455479]

約数ペア:

[(1, 20455479), (3, 6818493), (9, 2272831), (11, 1859589), (33, 619863), (99, 206621), (367, 55737), (563, 36333), (1101, 18579), (1689, 12111), (3303, 6193), (4037, 5067)]