21006054

素因数分解:

$2^1\times 3^4\times {\mathrm{127}}^1\times {\mathrm{1021}}^1$

素因数の和:1162

約数の個数: 40

約数和(自身を含む): 47486208

約数和(自身を除く): 26480154

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 127, 162, 254, 381, 762, 1021, 1143, 2042, 2286, 3063, 3429, 6126, 6858, 9189, 10287, 18378, 20574, 27567, 55134, 82701, 129667, 165402, 259334, 389001, 778002, 1167003, 2334006, 3501009, 7002018, 10503027, 21006054]

約数ペア:

[(1, 21006054), (2, 10503027), (3, 7002018), (6, 3501009), (9, 2334006), (18, 1167003), (27, 778002), (54, 389001), (81, 259334), (127, 165402), (162, 129667), (254, 82701), (381, 55134), (762, 27567), (1021, 20574), (1143, 18378), (2042, 10287), (2286, 9189), (3063, 6858), (3429, 6126)]