9999521

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:428

約数の個数: 16

約数和(自身を含む): 11827200

約数和(自身を除く): 1827679

約数列:

[1, 7, 43, 139, 239, 301, 973, 1673, 5977, 10277, 33221, 41839, 71939, 232547, 1428503, 9999521]

約数ペア:

[(1, 9999521), (7, 1428503), (43, 232547), (139, 71939), (239, 41839), (301, 33221), (973, 10277), (1673, 5977)]