219313143

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 394368000

約数和(自身を除く): 175054857

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 157, 171, 189, 389, 399, 471, 513, 1099, 1167, 1197, 1413, 2723, 2983, 3297, 3501, 3591, 4239, 7391, 8169, 8949, 9891, 10503, 20881, 22173, 24507, 26847, 29673, 51737, 61073, 62643, 66519, 73521, 80541, 155211, 183219, 187929, 199557, 427511, 465633, 549657, 563787, 1160387, 1282533, 1396899, 1648971, 3481161, 3847599, 8122709, 10443483, 11542797, 24368127, 31330449, 73104381, 219313143]

約数ペア:

[(1, 219313143), (3, 73104381), (7, 31330449), (9, 24368127), (19, 11542797), (21, 10443483), (27, 8122709), (57, 3847599), (63, 3481161), (133, 1648971), (157, 1396899), (171, 1282533), (189, 1160387), (389, 563787), (399, 549657), (471, 465633), (513, 427511), (1099, 199557), (1167, 187929), (1197, 183219), (1413, 155211), (2723, 80541), (2983, 73521), (3297, 66519), (3501, 62643), (3591, 61073), (4239, 51737), (7391, 29673), (8169, 26847), (8949, 24507), (9891, 22173), (10503, 20881)]