21691656

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:435

約数の個数: 96

約数和(自身を含む): 67791360

約数和(自身を除く): 46099704

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 193, 223, 252, 386, 446, 504, 579, 669, 772, 892, 1158, 1338, 1351, 1544, 1561, 1737, 1784, 2007, 2316, 2676, 2702, 3122, 3474, 4014, 4053, 4632, 4683, 5352, 5404, 6244, 6948, 8028, 8106, 9366, 10808, 12159, 12488, 13896, 14049, 16056, 16212, 18732, 24318, 28098, 32424, 37464, 43039, 48636, 56196, 86078, 97272, 112392, 129117, 172156, 258234, 301273, 344312, 387351, 516468, 602546, 774702, 903819, 1032936, 1205092, 1549404, 1807638, 2410184, 2711457, 3098808, 3615276, 5422914, 7230552, 10845828, 21691656]

約数ペア:

[(1, 21691656), (2, 10845828), (3, 7230552), (4, 5422914), (6, 3615276), (7, 3098808), (8, 2711457), (9, 2410184), (12, 1807638), (14, 1549404), (18, 1205092), (21, 1032936), (24, 903819), (28, 774702), (36, 602546), (42, 516468), (56, 387351), (63, 344312), (72, 301273), (84, 258234), (126, 172156), (168, 129117), (193, 112392), (223, 97272), (252, 86078), (386, 56196), (446, 48636), (504, 43039), (579, 37464), (669, 32424), (772, 28098), (892, 24318), (1158, 18732), (1338, 16212), (1351, 16056), (1544, 14049), (1561, 13896), (1737, 12488), (1784, 12159), (2007, 10808), (2316, 9366), (2676, 8106), (2702, 8028), (3122, 6948), (3474, 6244), (4014, 5404), (4053, 5352), (4632, 4683)]