81667971

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{617}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 148082688

約数和(自身を除く): 66414717

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 191, 231, 573, 617, 693, 1337, 1719, 1851, 2101, 4011, 4319, 5553, 6303, 6787, 12033, 12957, 14707, 18909, 20361, 38871, 44121, 47509, 61083, 117847, 132363, 142527, 353541, 427581, 824929, 1060623, 1296317, 2474787, 3888951, 7424361, 9074219, 11666853, 27222657, 81667971]

約数ペア:

[(1, 81667971), (3, 27222657), (7, 11666853), (9, 9074219), (11, 7424361), (21, 3888951), (33, 2474787), (63, 1296317), (77, 1060623), (99, 824929), (191, 427581), (231, 353541), (573, 142527), (617, 132363), (693, 117847), (1337, 61083), (1719, 47509), (1851, 44121), (2101, 38871), (4011, 20361), (4319, 18909), (5553, 14707), (6303, 12957), (6787, 12033)]