21627725

素因数分解:

$5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1489}}^1$

素因数の和:1589

約数の個数: 24

約数和(自身を含む): 31039680

約数和(自身を除く): 9411955

約数列:

[1, 5, 7, 25, 35, 83, 175, 415, 581, 1489, 2075, 2905, 7445, 10423, 14525, 37225, 52115, 123587, 260575, 617935, 865109, 3089675, 4325545, 21627725]

約数ペア:

[(1, 21627725), (5, 4325545), (7, 3089675), (25, 865109), (35, 617935), (83, 260575), (175, 123587), (415, 52115), (581, 37225), (1489, 14525), (2075, 10423), (2905, 7445)]