19794579

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^2$

素因数の和:212

約数の個数: 36

約数和(自身を含む): 32877144

約数和(自身を除く): 13082565

約数列:

[1, 3, 7, 17, 21, 49, 51, 89, 119, 147, 267, 357, 623, 833, 1513, 1869, 2499, 4361, 4539, 7921, 10591, 13083, 23763, 31773, 55447, 74137, 134657, 166341, 222411, 388129, 403971, 942599, 1164387, 2827797, 6598193, 19794579]

約数ペア:

[(1, 19794579), (3, 6598193), (7, 2827797), (17, 1164387), (21, 942599), (49, 403971), (51, 388129), (89, 222411), (119, 166341), (147, 134657), (267, 74137), (357, 55447), (623, 31773), (833, 23763), (1513, 13083), (1869, 10591), (2499, 7921), (4361, 4539)]