211380519

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{1669}}^1$

素因数の和:1879

約数の個数: 32

約数和(自身を含む): 333038080

約数和(自身を除く): 121657561

約数列:

[1, 3, 7, 21, 37, 111, 163, 259, 489, 777, 1141, 1669, 3423, 5007, 6031, 11683, 18093, 35049, 42217, 61753, 126651, 185259, 272047, 432271, 816141, 1296813, 1904329, 5712987, 10065739, 30197217, 70460173, 211380519]

約数ペア:

[(1, 211380519), (3, 70460173), (7, 30197217), (21, 10065739), (37, 5712987), (111, 1904329), (163, 1296813), (259, 816141), (489, 432271), (777, 272047), (1141, 185259), (1669, 126651), (3423, 61753), (5007, 42217), (6031, 35049), (11683, 18093)]