21173103

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3863}}^1$

素因数の和:3908

約数の個数: 32

約数和(自身を含む): 37094400

約数和(自身を除く): 15921297

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3863, 5481, 11589, 27041, 34767, 81123, 104301, 112027, 243369, 336081, 730107, 784189, 1008243, 2352567, 3024729, 7057701, 21173103]

約数ペア:

[(1, 21173103), (3, 7057701), (7, 3024729), (9, 2352567), (21, 1008243), (27, 784189), (29, 730107), (63, 336081), (87, 243369), (189, 112027), (203, 104301), (261, 81123), (609, 34767), (783, 27041), (1827, 11589), (3863, 5481)]