90811981

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 104564736

約数和(自身を除く): 13752755

約数列:

[1, 13, 23, 61, 169, 299, 383, 793, 1403, 3887, 4979, 8809, 10309, 18239, 23363, 64727, 114517, 237107, 303719, 537349, 1488721, 3948347, 6985537, 90811981]

約数ペア:

[(1, 90811981), (13, 6985537), (23, 3948347), (61, 1488721), (169, 537349), (299, 303719), (383, 237107), (793, 114517), (1403, 64727), (3887, 23363), (4979, 18239), (8809, 10309)]