20602687

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:319

約数の個数: 24

約数和(自身を含む): 25395552

約数和(自身を除く): 4792865

約数列:

[1, 7, 23, 49, 101, 161, 181, 707, 1127, 1267, 2323, 4163, 4949, 8869, 16261, 18281, 29141, 113827, 127967, 203987, 420463, 895769, 2943241, 20602687]

約数ペア:

[(1, 20602687), (7, 2943241), (23, 895769), (49, 420463), (101, 203987), (161, 127967), (181, 113827), (707, 29141), (1127, 18281), (1267, 16261), (2323, 8869), (4163, 4949)]