21080138401

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1\times {\mathrm{274993}}^1$

素因数の和:275280

約数の個数: 16

約数和(自身を含む): 24709860864

約数和(自身を除く): 3629722463

約数列:

[1, 7, 47, 233, 329, 1631, 10951, 76657, 274993, 1924951, 12924671, 64073369, 90472697, 448513583, 3011448343, 21080138401]

約数ペア:

[(1, 21080138401), (7, 3011448343), (47, 448513583), (233, 90472697), (329, 64073369), (1631, 12924671), (10951, 1924951), (76657, 274993)]