21728652

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:479

約数の個数: 96

約数和(自身を含む): 61254144

約数和(自身を除く): 39525492

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 23, 33, 34, 44, 46, 51, 66, 68, 69, 92, 102, 132, 138, 187, 204, 253, 276, 374, 391, 421, 506, 561, 748, 759, 782, 842, 1012, 1122, 1173, 1263, 1518, 1564, 1684, 2244, 2346, 2526, 3036, 4301, 4631, 4692, 5052, 7157, 8602, 9262, 9683, 12903, 13893, 14314, 17204, 18524, 19366, 21471, 25806, 27786, 28628, 29049, 38732, 42942, 51612, 55572, 58098, 78727, 85884, 106513, 116196, 157454, 164611, 213026, 236181, 314908, 319539, 329222, 426052, 472362, 493833, 639078, 658444, 944724, 987666, 1278156, 1810721, 1975332, 3621442, 5432163, 7242884, 10864326, 21728652]

約数ペア:

[(1, 21728652), (2, 10864326), (3, 7242884), (4, 5432163), (6, 3621442), (11, 1975332), (12, 1810721), (17, 1278156), (22, 987666), (23, 944724), (33, 658444), (34, 639078), (44, 493833), (46, 472362), (51, 426052), (66, 329222), (68, 319539), (69, 314908), (92, 236181), (102, 213026), (132, 164611), (138, 157454), (187, 116196), (204, 106513), (253, 85884), (276, 78727), (374, 58098), (391, 55572), (421, 51612), (506, 42942), (561, 38732), (748, 29049), (759, 28628), (782, 27786), (842, 25806), (1012, 21471), (1122, 19366), (1173, 18524), (1263, 17204), (1518, 14314), (1564, 13893), (1684, 12903), (2244, 9683), (2346, 9262), (2526, 8602), (3036, 7157), (4301, 5052), (4631, 4692)]