20161728587

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1\times {\mathrm{1223}}^1$

素因数の和:1680

約数の個数: 64

約数和(自身を含む): 27794866176

約数和(自身を除く): 7633137589

約数列:

[1, 7, 11, 13, 43, 77, 91, 143, 301, 383, 473, 559, 1001, 1223, 2681, 3311, 3913, 4213, 4979, 6149, 8561, 13453, 15899, 16469, 29491, 34853, 43043, 52589, 54769, 94171, 111293, 115283, 174889, 181159, 214097, 368123, 383383, 468409, 578479, 683657, 1224223, 1268113, 1498679, 2355067, 3278863, 4049353, 4785599, 5152499, 6089317, 7520227, 16485469, 20141587, 36067493, 42625219, 52641589, 66982487, 140991109, 221557457, 261840631, 468877409, 1550902199, 1832884417, 2880246941, 20161728587]

約数ペア:

[(1, 20161728587), (7, 2880246941), (11, 1832884417), (13, 1550902199), (43, 468877409), (77, 261840631), (91, 221557457), (143, 140991109), (301, 66982487), (383, 52641589), (473, 42625219), (559, 36067493), (1001, 20141587), (1223, 16485469), (2681, 7520227), (3311, 6089317), (3913, 5152499), (4213, 4785599), (4979, 4049353), (6149, 3278863), (8561, 2355067), (13453, 1498679), (15899, 1268113), (16469, 1224223), (29491, 683657), (34853, 578479), (43043, 468409), (52589, 383383), (54769, 368123), (94171, 214097), (111293, 181159), (115283, 174889)]