21861306

素因数分解:

$2^1\times 3^3\times {\mathrm{571}}^1\times {\mathrm{709}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 48734400

約数和(自身を除く): 26873094

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 571, 709, 1142, 1418, 1713, 2127, 3426, 4254, 5139, 6381, 10278, 12762, 15417, 19143, 30834, 38286, 404839, 809678, 1214517, 2429034, 3643551, 7287102, 10930653, 21861306]

約数ペア:

[(1, 21861306), (2, 10930653), (3, 7287102), (6, 3643551), (9, 2429034), (18, 1214517), (27, 809678), (54, 404839), (571, 38286), (709, 30834), (1142, 19143), (1418, 15417), (1713, 12762), (2127, 10278), (3426, 6381), (4254, 5139)]