21074109

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9743}}^1$

素因数の和:9856

約数の個数: 16

約数和(自身を含む): 32428032

約数和(自身を除く): 11353923

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 9743, 29229, 68201, 204603, 1003529, 3010587, 7024703, 21074109]

約数ペア:

[(1, 21074109), (3, 7024703), (7, 3010587), (21, 1003529), (103, 204603), (309, 68201), (721, 29229), (2163, 9743)]