21266487

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1901}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 33825168

約数和(自身を除く): 12558681

約数列:

[1, 3, 9, 11, 33, 99, 113, 339, 1017, 1243, 1901, 3729, 5703, 11187, 17109, 20911, 62733, 188199, 214813, 644439, 1933317, 2362943, 7088829, 21266487]

約数ペア:

[(1, 21266487), (3, 7088829), (9, 2362943), (11, 1933317), (33, 644439), (99, 214813), (113, 188199), (339, 62733), (1017, 20911), (1243, 17109), (1901, 11187), (3729, 5703)]