21572152

素因数分解:

$2^3\times 7^2\times {\mathrm{113}}^1\times {\mathrm{487}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 47565360

約数和(自身を除く): 25993208

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 113, 196, 226, 392, 452, 487, 791, 904, 974, 1582, 1948, 3164, 3409, 3896, 5537, 6328, 6818, 11074, 13636, 22148, 23863, 27272, 44296, 47726, 55031, 95452, 110062, 190904, 220124, 385217, 440248, 770434, 1540868, 2696519, 3081736, 5393038, 10786076, 21572152]

約数ペア:

[(1, 21572152), (2, 10786076), (4, 5393038), (7, 3081736), (8, 2696519), (14, 1540868), (28, 770434), (49, 440248), (56, 385217), (98, 220124), (113, 190904), (196, 110062), (226, 95452), (392, 55031), (452, 47726), (487, 44296), (791, 27272), (904, 23863), (974, 22148), (1582, 13636), (1948, 11074), (3164, 6818), (3409, 6328), (3896, 5537)]