21861868

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{409}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 46287360

約数和(自身を除く): 24425492

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 83, 92, 161, 166, 322, 332, 409, 581, 644, 818, 1162, 1636, 1909, 2324, 2863, 3818, 5726, 7636, 9407, 11452, 13363, 18814, 26726, 33947, 37628, 53452, 65849, 67894, 131698, 135788, 237629, 263396, 475258, 780781, 950516, 1561562, 3123124, 5465467, 10930934, 21861868]

約数ペア:

[(1, 21861868), (2, 10930934), (4, 5465467), (7, 3123124), (14, 1561562), (23, 950516), (28, 780781), (46, 475258), (83, 263396), (92, 237629), (161, 135788), (166, 131698), (322, 67894), (332, 65849), (409, 53452), (581, 37628), (644, 33947), (818, 26726), (1162, 18814), (1636, 13363), (1909, 11452), (2324, 9407), (2863, 7636), (3818, 5726)]