20554270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16987}}^1$

素因数の和:17016

約数の個数: 24

約数和(自身を含む): 40669272

約数和(自身を除く): 20115002

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16987, 33974, 84935, 169870, 186857, 373714, 934285, 1868570, 2055427, 4110854, 10277135, 20554270]

約数ペア:

[(1, 20554270), (2, 10277135), (5, 4110854), (10, 2055427), (11, 1868570), (22, 934285), (55, 373714), (110, 186857), (121, 169870), (242, 84935), (605, 33974), (1210, 16987)]