21046818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1129}}^1$

素因数の和:1386

約数の個数: 32

約数和(自身を含む): 45561600

約数和(自身を除く): 24514782

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 239, 478, 717, 1129, 1434, 2258, 3107, 3387, 6214, 6774, 9321, 14677, 18642, 29354, 44031, 88062, 269831, 539662, 809493, 1618986, 3507803, 7015606, 10523409, 21046818]

約数ペア:

[(1, 21046818), (2, 10523409), (3, 7015606), (6, 3507803), (13, 1618986), (26, 809493), (39, 539662), (78, 269831), (239, 88062), (478, 44031), (717, 29354), (1129, 18642), (1434, 14677), (2258, 9321), (3107, 6774), (3387, 6214)]