199890789

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{1223}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 313657344

約数和(自身を除く): 113766555

約数列:

[1, 3, 7, 21, 43, 129, 181, 301, 543, 903, 1223, 1267, 3669, 3801, 7783, 8561, 23349, 25683, 52589, 54481, 157767, 163443, 221363, 368123, 664089, 1104369, 1549541, 4648623, 9518609, 28555827, 66630263, 199890789]

約数ペア:

[(1, 199890789), (3, 66630263), (7, 28555827), (21, 9518609), (43, 4648623), (129, 1549541), (181, 1104369), (301, 664089), (543, 368123), (903, 221363), (1223, 163443), (1267, 157767), (3669, 54481), (3801, 52589), (7783, 25683), (8561, 23349)]