21080664

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:685

約数の個数: 96

約数和(自身を含む): 63835200

約数和(自身を除く): 42754536

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 43, 44, 66, 72, 86, 88, 99, 129, 132, 172, 198, 258, 264, 344, 387, 396, 473, 516, 619, 774, 792, 946, 1032, 1238, 1419, 1548, 1857, 1892, 2476, 2838, 3096, 3714, 3784, 4257, 4952, 5571, 5676, 6809, 7428, 8514, 11142, 11352, 13618, 14856, 17028, 20427, 22284, 26617, 27236, 34056, 40854, 44568, 53234, 54472, 61281, 79851, 81708, 106468, 122562, 159702, 163416, 212936, 239553, 245124, 292787, 319404, 479106, 490248, 585574, 638808, 878361, 958212, 1171148, 1756722, 1916424, 2342296, 2635083, 3513444, 5270166, 7026888, 10540332, 21080664]

約数ペア:

[(1, 21080664), (2, 10540332), (3, 7026888), (4, 5270166), (6, 3513444), (8, 2635083), (9, 2342296), (11, 1916424), (12, 1756722), (18, 1171148), (22, 958212), (24, 878361), (33, 638808), (36, 585574), (43, 490248), (44, 479106), (66, 319404), (72, 292787), (86, 245124), (88, 239553), (99, 212936), (129, 163416), (132, 159702), (172, 122562), (198, 106468), (258, 81708), (264, 79851), (344, 61281), (387, 54472), (396, 53234), (473, 44568), (516, 40854), (619, 34056), (774, 27236), (792, 26617), (946, 22284), (1032, 20427), (1238, 17028), (1419, 14856), (1548, 13618), (1857, 11352), (1892, 11142), (2476, 8514), (2838, 7428), (3096, 6809), (3714, 5676), (3784, 5571), (4257, 4952)]