21541618

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90511}}^1$

素因数の和:90537

約数の個数: 16

約数和(自身を含む): 39101184

約数和(自身を除く): 17559566

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90511, 181022, 633577, 1267154, 1538687, 3077374, 10770809, 21541618]

約数ペア:

[(1, 21541618), (2, 10770809), (7, 3077374), (14, 1538687), (17, 1267154), (34, 633577), (119, 181022), (238, 90511)]