20541996

素因数分解:

$2^2\times 3^2\times {\mathrm{127}}^1\times {\mathrm{4493}}^1$

素因数の和:4630

約数の個数: 36

約数和(自身を含む): 52346112

約数和(自身を除く): 31804116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 127, 254, 381, 508, 762, 1143, 1524, 2286, 4493, 4572, 8986, 13479, 17972, 26958, 40437, 53916, 80874, 161748, 570611, 1141222, 1711833, 2282444, 3423666, 5135499, 6847332, 10270998, 20541996]

約数ペア:

[(1, 20541996), (2, 10270998), (3, 6847332), (4, 5135499), (6, 3423666), (9, 2282444), (12, 1711833), (18, 1141222), (36, 570611), (127, 161748), (254, 80874), (381, 53916), (508, 40437), (762, 26958), (1143, 17972), (1524, 13479), (2286, 8986), (4493, 4572)]