21063434

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^2\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 36

約数和(自身を含む): 38014326

約数和(自身を除く): 16950892

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 157, 259, 314, 518, 1099, 1369, 1813, 2198, 2738, 3626, 5809, 7693, 9583, 11618, 15386, 19166, 40663, 67081, 81326, 134162, 214933, 284641, 429866, 569282, 1504531, 3009062, 10531717, 21063434]

約数ペア:

[(1, 21063434), (2, 10531717), (7, 3009062), (14, 1504531), (37, 569282), (49, 429866), (74, 284641), (98, 214933), (157, 134162), (259, 81326), (314, 67081), (518, 40663), (1099, 19166), (1369, 15386), (1813, 11618), (2198, 9583), (2738, 7693), (3626, 5809)]