199967089

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 238545000

約数和(自身を除く): 38577911

約数列:

[1, 7, 49, 61, 149, 427, 449, 1043, 2989, 3143, 7301, 9089, 22001, 27389, 63623, 66901, 191723, 445361, 468307, 1342061, 3278149, 4080961, 28566727, 199967089]

約数ペア:

[(1, 199967089), (7, 28566727), (49, 4080961), (61, 3278149), (149, 1342061), (427, 468307), (449, 445361), (1043, 191723), (2989, 66901), (3143, 63623), (7301, 27389), (9089, 22001)]