28686788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1637}}^1$

素因数の和:1991

約数の個数: 24

約数和(自身を含む): 54257112

約数和(自身を除く): 25570324

約数列:

[1, 2, 4, 13, 26, 52, 337, 674, 1348, 1637, 3274, 4381, 6548, 8762, 17524, 21281, 42562, 85124, 551669, 1103338, 2206676, 7171697, 14343394, 28686788]

約数ペア:

[(1, 28686788), (2, 14343394), (4, 7171697), (13, 2206676), (26, 1103338), (52, 551669), (337, 85124), (674, 42562), (1348, 21281), (1637, 17524), (3274, 8762), (4381, 6548)]