21360766

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:233

約数の個数: 48

約数和(自身を含む): 39455856

約数和(自身を除く): 18095090

約数列:

[1, 2, 7, 14, 37, 43, 49, 74, 86, 98, 137, 259, 274, 301, 518, 602, 959, 1591, 1813, 1918, 2107, 3182, 3626, 4214, 5069, 5891, 6713, 10138, 11137, 11782, 13426, 22274, 35483, 41237, 70966, 77959, 82474, 155918, 217967, 248381, 288659, 435934, 496762, 577318, 1525769, 3051538, 10680383, 21360766]

約数ペア:

[(1, 21360766), (2, 10680383), (7, 3051538), (14, 1525769), (37, 577318), (43, 496762), (49, 435934), (74, 288659), (86, 248381), (98, 217967), (137, 155918), (259, 82474), (274, 77959), (301, 70966), (518, 41237), (602, 35483), (959, 22274), (1591, 13426), (1813, 11782), (1918, 11137), (2107, 10138), (3182, 6713), (3626, 5891), (4214, 5069)]