20706994

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 20350286

約数列:

[1, 2, 7, 11, 14, 22, 43, 53, 59, 77, 86, 106, 118, 154, 301, 371, 413, 473, 583, 602, 649, 742, 826, 946, 1166, 1298, 2279, 2537, 3127, 3311, 4081, 4543, 4558, 5074, 6254, 6622, 8162, 9086, 15953, 17759, 21889, 25069, 27907, 31906, 34397, 35518, 43778, 50138, 55814, 68794, 134461, 175483, 195349, 240779, 268922, 350966, 390698, 481558, 941227, 1479071, 1882454, 2958142, 10353497, 20706994]

約数ペア:

[(1, 20706994), (2, 10353497), (7, 2958142), (11, 1882454), (14, 1479071), (22, 941227), (43, 481558), (53, 390698), (59, 350966), (77, 268922), (86, 240779), (106, 195349), (118, 175483), (154, 134461), (301, 68794), (371, 55814), (413, 50138), (473, 43778), (583, 35518), (602, 34397), (649, 31906), (742, 27907), (826, 25069), (946, 21889), (1166, 17759), (1298, 15953), (2279, 9086), (2537, 8162), (3127, 6622), (3311, 6254), (4081, 5074), (4543, 4558)]