21109214

素因数分解:

$2^1\times 7^1\times {\mathrm{1103}}^1\times {\mathrm{1367}}^1$

素因数の和:2479

約数の個数: 16

約数和(自身を含む): 36246528

約数和(自身を除く): 15137314

約数列:

[1, 2, 7, 14, 1103, 1367, 2206, 2734, 7721, 9569, 15442, 19138, 1507801, 3015602, 10554607, 21109214]

約数ペア:

[(1, 21109214), (2, 10554607), (7, 3015602), (14, 1507801), (1103, 19138), (1367, 15442), (2206, 9569), (2734, 7721)]