21395906

素因数分解:

$2^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{18413}}^1$

素因数の和:18505

約数の個数: 16

約数和(自身を含む): 37122624

約数和(自身を除く): 15726718

約数列:

[1, 2, 7, 14, 83, 166, 581, 1162, 18413, 36826, 128891, 257782, 1528279, 3056558, 10697953, 21395906]

約数ペア:

[(1, 21395906), (2, 10697953), (7, 3056558), (14, 1528279), (83, 257782), (166, 128891), (581, 36826), (1162, 18413)]