20890716

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{983}}^1$

素因数の和:1031

約数の個数: 96

約数和(自身を含む): 63479808

約数和(自身を除く): 42589092

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 23, 28, 33, 42, 44, 46, 66, 69, 77, 84, 92, 132, 138, 154, 161, 231, 253, 276, 308, 322, 462, 483, 506, 644, 759, 924, 966, 983, 1012, 1518, 1771, 1932, 1966, 2949, 3036, 3542, 3932, 5313, 5898, 6881, 7084, 10626, 10813, 11796, 13762, 20643, 21252, 21626, 22609, 27524, 32439, 41286, 43252, 45218, 64878, 67827, 75691, 82572, 90436, 129756, 135654, 151382, 158263, 227073, 248699, 271308, 302764, 316526, 454146, 474789, 497398, 633052, 746097, 908292, 949578, 994796, 1492194, 1740893, 1899156, 2984388, 3481786, 5222679, 6963572, 10445358, 20890716]

約数ペア:

[(1, 20890716), (2, 10445358), (3, 6963572), (4, 5222679), (6, 3481786), (7, 2984388), (11, 1899156), (12, 1740893), (14, 1492194), (21, 994796), (22, 949578), (23, 908292), (28, 746097), (33, 633052), (42, 497398), (44, 474789), (46, 454146), (66, 316526), (69, 302764), (77, 271308), (84, 248699), (92, 227073), (132, 158263), (138, 151382), (154, 135654), (161, 129756), (231, 90436), (253, 82572), (276, 75691), (308, 67827), (322, 64878), (462, 45218), (483, 43252), (506, 41286), (644, 32439), (759, 27524), (924, 22609), (966, 21626), (983, 21252), (1012, 20643), (1518, 13762), (1771, 11796), (1932, 10813), (1966, 10626), (2949, 7084), (3036, 6881), (3542, 5898), (3932, 5313)]