207919971

素因数分解:

$3^2\times 7^1\times {\mathrm{347}}^1\times {\mathrm{9511}}^1$

素因数の和:9871

約数の個数: 24

約数和(自身を含む): 344258304

約数和(自身を除く): 136338333

約数列:

[1, 3, 7, 9, 21, 63, 347, 1041, 2429, 3123, 7287, 9511, 21861, 28533, 66577, 85599, 199731, 599193, 3300317, 9900951, 23102219, 29702853, 69306657, 207919971]

約数ペア:

[(1, 207919971), (3, 69306657), (7, 29702853), (9, 23102219), (21, 9900951), (63, 3300317), (347, 599193), (1041, 199731), (2429, 85599), (3123, 66577), (7287, 28533), (9511, 21861)]