21605729

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:352

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 1618591

約数列:

[1, 31, 41, 89, 191, 1271, 2759, 3649, 5921, 7831, 16999, 113119, 242761, 526969, 696959, 21605729]

約数ペア:

[(1, 21605729), (31, 696959), (41, 526969), (89, 242761), (191, 113119), (1271, 16999), (2759, 7831), (3649, 5921)]