209426049

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{15319}}^1$

素因数の和:15370

約数の個数: 36

約数和(自身を含む): 363267840

約数和(自身を除く): 153841791

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 441, 651, 1519, 1953, 4557, 13671, 15319, 45957, 107233, 137871, 321699, 474889, 750631, 965097, 1424667, 2251893, 3324223, 4274001, 6755679, 9972669, 23269561, 29918007, 69808683, 209426049]

約数ペア:

[(1, 209426049), (3, 69808683), (7, 29918007), (9, 23269561), (21, 9972669), (31, 6755679), (49, 4274001), (63, 3324223), (93, 2251893), (147, 1424667), (217, 965097), (279, 750631), (441, 474889), (651, 321699), (1519, 137871), (1953, 107233), (4557, 45957), (13671, 15319)]