199158519

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{571}}^1\times {\mathrm{977}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 322223616

約数和(自身を除く): 123065097

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 571, 977, 1713, 2931, 3997, 6839, 9707, 11991, 16609, 20517, 29121, 49827, 67949, 116263, 203847, 348789, 557867, 1673601, 3905069, 9483739, 11715207, 28451217, 66386173, 199158519]

約数ペア:

[(1, 199158519), (3, 66386173), (7, 28451217), (17, 11715207), (21, 9483739), (51, 3905069), (119, 1673601), (357, 557867), (571, 348789), (977, 203847), (1713, 116263), (2931, 67949), (3997, 49827), (6839, 29121), (9707, 20517), (11991, 16609)]