81002187

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 148994560

約数和(自身を除く): 67992373

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 73, 81, 103, 133, 171, 189, 219, 309, 399, 511, 513, 567, 657, 721, 927, 1197, 1387, 1533, 1539, 1957, 1971, 2163, 2781, 3591, 4161, 4599, 5871, 5913, 6489, 7519, 8343, 9709, 10773, 12483, 13699, 13797, 17613, 19467, 22557, 29127, 37449, 41097, 41391, 52633, 52839, 58401, 67671, 87381, 112347, 123291, 142861, 157899, 158517, 203013, 262143, 369873, 428583, 473697, 609039, 786429, 1000027, 1109619, 1285749, 1421091, 3000081, 3857247, 4263273, 9000243, 11571741, 27000729, 81002187]

約数ペア:

[(1, 81002187), (3, 27000729), (7, 11571741), (9, 9000243), (19, 4263273), (21, 3857247), (27, 3000081), (57, 1421091), (63, 1285749), (73, 1109619), (81, 1000027), (103, 786429), (133, 609039), (171, 473697), (189, 428583), (219, 369873), (309, 262143), (399, 203013), (511, 158517), (513, 157899), (567, 142861), (657, 123291), (721, 112347), (927, 87381), (1197, 67671), (1387, 58401), (1533, 52839), (1539, 52633), (1957, 41391), (1971, 41097), (2163, 37449), (2781, 29127), (3591, 22557), (4161, 19467), (4599, 17613), (5871, 13797), (5913, 13699), (6489, 12483), (7519, 10773), (8343, 9709)]