21442049

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 32

約数和(自身を含む): 25712640

約数和(自身を除く): 4270591

約数列:

[1, 17, 23, 29, 31, 61, 391, 493, 527, 667, 713, 899, 1037, 1403, 1769, 1891, 11339, 12121, 15283, 20677, 23851, 30073, 32147, 40687, 43493, 54839, 351509, 691679, 739381, 932263, 1261297, 21442049]

約数ペア:

[(1, 21442049), (17, 1261297), (23, 932263), (29, 739381), (31, 691679), (61, 351509), (391, 54839), (493, 43493), (527, 40687), (667, 32147), (713, 30073), (899, 23851), (1037, 20677), (1403, 15283), (1769, 12121), (1891, 11339)]