21165998

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1409}}^1$

素因数の和:1484

約数の個数: 32

約数和(自身を含む): 38577600

約数和(自身を除く): 17411602

約数列:

[1, 2, 7, 14, 29, 37, 58, 74, 203, 259, 406, 518, 1073, 1409, 2146, 2818, 7511, 9863, 15022, 19726, 40861, 52133, 81722, 104266, 286027, 364931, 572054, 729862, 1511857, 3023714, 10582999, 21165998]

約数ペア:

[(1, 21165998), (2, 10582999), (7, 3023714), (14, 1511857), (29, 729862), (37, 572054), (58, 364931), (74, 286027), (203, 104266), (259, 81722), (406, 52133), (518, 40861), (1073, 19726), (1409, 15022), (2146, 9863), (2818, 7511)]