199432891

素因数分解:

$7^3\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 241920000

約数和(自身を除く): 42487109

約数列:

[1, 7, 47, 49, 89, 139, 329, 343, 623, 973, 2303, 4183, 4361, 6533, 6811, 12371, 16121, 29281, 30527, 45731, 47677, 86597, 204967, 320117, 581437, 606179, 1434769, 2240819, 4070059, 4243253, 28490413, 199432891]

約数ペア:

[(1, 199432891), (7, 28490413), (47, 4243253), (49, 4070059), (89, 2240819), (139, 1434769), (329, 606179), (343, 581437), (623, 320117), (973, 204967), (2303, 86597), (4183, 47677), (4361, 45731), (6533, 30527), (6811, 29281), (12371, 16121)]