19959876

素因数分解:

$2^2\times 3^2\times {\mathrm{571}}^1\times {\mathrm{971}}^1$

素因数の和:1552

約数の個数: 36

約数和(自身を含む): 50594544

約数和(自身を除く): 30634668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 571, 971, 1142, 1713, 1942, 2284, 2913, 3426, 3884, 5139, 5826, 6852, 8739, 10278, 11652, 17478, 20556, 34956, 554441, 1108882, 1663323, 2217764, 3326646, 4989969, 6653292, 9979938, 19959876]

約数ペア:

[(1, 19959876), (2, 9979938), (3, 6653292), (4, 4989969), (6, 3326646), (9, 2217764), (12, 1663323), (18, 1108882), (36, 554441), (571, 34956), (971, 20556), (1142, 17478), (1713, 11652), (1942, 10278), (2284, 8739), (2913, 6852), (3426, 5826), (3884, 5139)]