20821302

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2647}}^1$

素因数の和:2697

約数の個数: 48

約数和(自身を含む): 49570560

約数和(自身を除く): 28749258

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 38, 46, 57, 69, 114, 138, 171, 207, 342, 414, 437, 874, 1311, 2622, 2647, 3933, 5294, 7866, 7941, 15882, 23823, 47646, 50293, 60881, 100586, 121762, 150879, 182643, 301758, 365286, 452637, 547929, 905274, 1095858, 1156739, 2313478, 3470217, 6940434, 10410651, 20821302]

約数ペア:

[(1, 20821302), (2, 10410651), (3, 6940434), (6, 3470217), (9, 2313478), (18, 1156739), (19, 1095858), (23, 905274), (38, 547929), (46, 452637), (57, 365286), (69, 301758), (114, 182643), (138, 150879), (171, 121762), (207, 100586), (342, 60881), (414, 50293), (437, 47646), (874, 23823), (1311, 15882), (2622, 7941), (2647, 7866), (3933, 5294)]