20512803

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{1097}}^1$

素因数の和:1394

約数の個数: 16

約数和(自身を含む): 28670976

約数和(自身を除く): 8158173

約数列:

[1, 3, 23, 69, 271, 813, 1097, 3291, 6233, 18699, 25231, 75693, 297287, 891861, 6837601, 20512803]

約数ペア:

[(1, 20512803), (3, 6837601), (23, 891861), (69, 297287), (271, 75693), (813, 25231), (1097, 18699), (3291, 6233)]