21343075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3863}}^1$

素因数の和:3903

約数の個数: 24

約数和(自身を含む): 30185568

約数和(自身を除く): 8842493

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3863, 5525, 19315, 50219, 65671, 96575, 251095, 328355, 853723, 1255475, 1641775, 4268615, 21343075]

約数ペア:

[(1, 21343075), (5, 4268615), (13, 1641775), (17, 1255475), (25, 853723), (65, 328355), (85, 251095), (221, 96575), (325, 65671), (425, 50219), (1105, 19315), (3863, 5525)]