20605746

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 49932288

約数和(自身を除く): 29326542

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 83, 138, 161, 166, 249, 257, 322, 483, 498, 514, 581, 771, 966, 1162, 1542, 1743, 1799, 1909, 3486, 3598, 3818, 5397, 5727, 5911, 10794, 11454, 11822, 13363, 17733, 21331, 26726, 35466, 40089, 41377, 42662, 63993, 80178, 82754, 124131, 127986, 149317, 248262, 298634, 447951, 490613, 895902, 981226, 1471839, 2943678, 3434291, 6868582, 10302873, 20605746]

約数ペア:

[(1, 20605746), (2, 10302873), (3, 6868582), (6, 3434291), (7, 2943678), (14, 1471839), (21, 981226), (23, 895902), (42, 490613), (46, 447951), (69, 298634), (83, 248262), (138, 149317), (161, 127986), (166, 124131), (249, 82754), (257, 80178), (322, 63993), (483, 42662), (498, 41377), (514, 40089), (581, 35466), (771, 26726), (966, 21331), (1162, 17733), (1542, 13363), (1743, 11822), (1799, 11454), (1909, 10794), (3486, 5911), (3598, 5727), (3818, 5397)]