1990755711

素因数分解:

$3^4\times 7^1\times {\mathrm{3511033}}^1$

素因数の和:3511052

約数の個数: 20

約数和(自身を含む): 3398680912

約数和(自身を除く): 1407925201

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3511033, 10533099, 24577231, 31599297, 73731693, 94797891, 221195079, 284393673, 663585237, 1990755711]

約数ペア:

[(1, 1990755711), (3, 663585237), (7, 284393673), (9, 221195079), (21, 94797891), (27, 73731693), (63, 31599297), (81, 24577231), (189, 10533099), (567, 3511033)]