81561018

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{1459}}^1$

素因数の和:1504

約数の個数: 64

約数和(自身を含む): 205194240

約数和(自身を除く): 123633222

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 121, 154, 231, 242, 363, 462, 726, 847, 1331, 1459, 1694, 2541, 2662, 2918, 3993, 4377, 5082, 7986, 8754, 9317, 10213, 16049, 18634, 20426, 27951, 30639, 32098, 48147, 55902, 61278, 96294, 112343, 176539, 224686, 337029, 353078, 529617, 674058, 1059234, 1235773, 1941929, 2471546, 3707319, 3883858, 5825787, 7414638, 11651574, 13593503, 27187006, 40780509, 81561018]

約数ペア:

[(1, 81561018), (2, 40780509), (3, 27187006), (6, 13593503), (7, 11651574), (11, 7414638), (14, 5825787), (21, 3883858), (22, 3707319), (33, 2471546), (42, 1941929), (66, 1235773), (77, 1059234), (121, 674058), (154, 529617), (231, 353078), (242, 337029), (363, 224686), (462, 176539), (726, 112343), (847, 96294), (1331, 61278), (1459, 55902), (1694, 48147), (2541, 32098), (2662, 30639), (2918, 27951), (3993, 20426), (4377, 18634), (5082, 16049), (7986, 10213), (8754, 9317)]