21212072

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 48660480

約数和(自身を除く): 27448408

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 43, 46, 56, 86, 92, 161, 172, 184, 301, 322, 344, 383, 602, 644, 766, 989, 1204, 1288, 1532, 1978, 2408, 2681, 3064, 3956, 5362, 6923, 7912, 8809, 10724, 13846, 16469, 17618, 21448, 27692, 32938, 35236, 55384, 61663, 65876, 70472, 115283, 123326, 131752, 230566, 246652, 378787, 461132, 493304, 757574, 922264, 1515148, 2651509, 3030296, 5303018, 10606036, 21212072]

約数ペア:

[(1, 21212072), (2, 10606036), (4, 5303018), (7, 3030296), (8, 2651509), (14, 1515148), (23, 922264), (28, 757574), (43, 493304), (46, 461132), (56, 378787), (86, 246652), (92, 230566), (161, 131752), (172, 123326), (184, 115283), (301, 70472), (322, 65876), (344, 61663), (383, 55384), (602, 35236), (644, 32938), (766, 27692), (989, 21448), (1204, 17618), (1288, 16469), (1532, 13846), (1978, 10724), (2408, 8809), (2681, 7912), (3064, 6923), (3956, 5362)]