207978255

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{271867}}^1$

素因数の和:271895

約数の個数: 24

約数和(自身を含む): 381702672

約数和(自身を除く): 173724417

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 271867, 815601, 1359335, 2446803, 4078005, 4621739, 12234015, 13865217, 23108695, 41595651, 69326085, 207978255]

約数ペア:

[(1, 207978255), (3, 69326085), (5, 41595651), (9, 23108695), (15, 13865217), (17, 12234015), (45, 4621739), (51, 4078005), (85, 2446803), (153, 1359335), (255, 815601), (765, 271867)]