21013226

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^2$

素因数の和:135

約数の個数: 36

約数和(自身を含む): 36325926

約数和(自身を除く): 15312700

約数列:

[1, 2, 13, 26, 29, 31, 58, 62, 377, 403, 754, 806, 841, 899, 961, 1682, 1798, 1922, 10933, 11687, 12493, 21866, 23374, 24986, 26071, 27869, 52142, 55738, 338923, 362297, 677846, 724594, 808201, 1616402, 10506613, 21013226]

約数ペア:

[(1, 21013226), (2, 10506613), (13, 1616402), (26, 808201), (29, 724594), (31, 677846), (58, 362297), (62, 338923), (377, 55738), (403, 52142), (754, 27869), (806, 26071), (841, 24986), (899, 23374), (961, 21866), (1682, 12493), (1798, 11687), (1922, 10933)]