28563927

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 21202473

約数列:

[1, 3, 7, 17, 21, 29, 31, 51, 87, 89, 93, 119, 203, 217, 267, 357, 493, 527, 609, 623, 651, 899, 1479, 1513, 1581, 1869, 2581, 2697, 2759, 3451, 3689, 4539, 6293, 7743, 8277, 10353, 10591, 11067, 15283, 18067, 18879, 19313, 31773, 43877, 45849, 46903, 54201, 57939, 80011, 106981, 131631, 140709, 240033, 307139, 320943, 328321, 560077, 921417, 984963, 1360187, 1680231, 4080561, 9521309, 28563927]

約数ペア:

[(1, 28563927), (3, 9521309), (7, 4080561), (17, 1680231), (21, 1360187), (29, 984963), (31, 921417), (51, 560077), (87, 328321), (89, 320943), (93, 307139), (119, 240033), (203, 140709), (217, 131631), (267, 106981), (357, 80011), (493, 57939), (527, 54201), (609, 46903), (623, 45849), (651, 43877), (899, 31773), (1479, 19313), (1513, 18879), (1581, 18067), (1869, 15283), (2581, 11067), (2697, 10591), (2759, 10353), (3451, 8277), (3689, 7743), (4539, 6293)]