81940446

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1523}}^1$

素因数の和:1606

約数の個数: 72

約数和(自身を含む): 210046824

約数和(自身を除く): 128106378

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 61, 63, 98, 122, 126, 147, 183, 294, 366, 427, 441, 549, 854, 882, 1098, 1281, 1523, 2562, 2989, 3046, 3843, 4569, 5978, 7686, 8967, 9138, 10661, 13707, 17934, 21322, 26901, 27414, 31983, 53802, 63966, 74627, 92903, 95949, 149254, 185806, 191898, 223881, 278709, 447762, 557418, 650321, 671643, 836127, 1300642, 1343286, 1672254, 1950963, 3901926, 4552247, 5852889, 9104494, 11705778, 13656741, 27313482, 40970223, 81940446]

約数ペア:

[(1, 81940446), (2, 40970223), (3, 27313482), (6, 13656741), (7, 11705778), (9, 9104494), (14, 5852889), (18, 4552247), (21, 3901926), (42, 1950963), (49, 1672254), (61, 1343286), (63, 1300642), (98, 836127), (122, 671643), (126, 650321), (147, 557418), (183, 447762), (294, 278709), (366, 223881), (427, 191898), (441, 185806), (549, 149254), (854, 95949), (882, 92903), (1098, 74627), (1281, 63966), (1523, 53802), (2562, 31983), (2989, 27414), (3046, 26901), (3843, 21322), (4569, 17934), (5978, 13707), (7686, 10661), (8967, 9138)]