12911855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 18040320

約数和(自身を除く): 5128465

約数列:

[1, 5, 11, 23, 55, 59, 115, 173, 253, 295, 649, 865, 1265, 1357, 1903, 3245, 3979, 6785, 9515, 10207, 14927, 19895, 43769, 51035, 74635, 112277, 218845, 234761, 561385, 1173805, 2582371, 12911855]

約数ペア:

[(1, 12911855), (5, 2582371), (11, 1173805), (23, 561385), (55, 234761), (59, 218845), (115, 112277), (173, 74635), (253, 51035), (295, 43769), (649, 19895), (865, 14927), (1265, 10207), (1357, 9515), (1903, 6785), (3245, 3979)]