18267775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 24467184

約数和(自身を除く): 6199409

約数列:

[1, 5, 17, 25, 53, 85, 265, 425, 811, 901, 1325, 4055, 4505, 13787, 20275, 22525, 42983, 68935, 214915, 344675, 730711, 1074575, 3653555, 18267775]

約数ペア:

[(1, 18267775), (5, 3653555), (17, 1074575), (25, 730711), (53, 344675), (85, 214915), (265, 68935), (425, 42983), (811, 22525), (901, 20275), (1325, 13787), (4055, 4505)]