20010669

素因数分解:

$3^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{691}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 31239648

約数和(自身を除く): 11228979

約数列:

[1, 3, 7, 21, 49, 147, 197, 591, 691, 1379, 2073, 4137, 4837, 9653, 14511, 28959, 33859, 101577, 136127, 408381, 952889, 2858667, 6670223, 20010669]

約数ペア:

[(1, 20010669), (3, 6670223), (7, 2858667), (21, 952889), (49, 408381), (147, 136127), (197, 101577), (591, 33859), (691, 28959), (1379, 14511), (2073, 9653), (4137, 4837)]