201569781

素因数分解:

$3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 331776000

約数和(自身を除く): 130206219

約数列:

[1, 3, 7, 21, 31, 49, 71, 89, 93, 147, 213, 217, 267, 343, 497, 623, 651, 1029, 1491, 1519, 1869, 2201, 2759, 3479, 4361, 4557, 6319, 6603, 8277, 10437, 10633, 13083, 15407, 18957, 19313, 24353, 30527, 31899, 44233, 46221, 57939, 73059, 91581, 107849, 132699, 135191, 195889, 309631, 323547, 405573, 587667, 754943, 928893, 946337, 1371223, 2167417, 2264829, 2839011, 4113669, 6502251, 9598561, 28795683, 67189927, 201569781]

約数ペア:

[(1, 201569781), (3, 67189927), (7, 28795683), (21, 9598561), (31, 6502251), (49, 4113669), (71, 2839011), (89, 2264829), (93, 2167417), (147, 1371223), (213, 946337), (217, 928893), (267, 754943), (343, 587667), (497, 405573), (623, 323547), (651, 309631), (1029, 195889), (1491, 135191), (1519, 132699), (1869, 107849), (2201, 91581), (2759, 73059), (3479, 57939), (4361, 46221), (4557, 44233), (6319, 31899), (6603, 30527), (8277, 24353), (10437, 19313), (10633, 18957), (13083, 15407)]