21861606

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{280277}}^1$

素因数の和:280295

約数の個数: 16

約数和(自身を含む): 47086704

約数和(自身を除く): 25225098

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 280277, 560554, 840831, 1681662, 3643601, 7287202, 10930803, 21861606]

約数ペア:

[(1, 21861606), (2, 10930803), (3, 7287202), (6, 3643601), (13, 1681662), (26, 840831), (39, 560554), (78, 280277)]