21598075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{571}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 28725840

約数和(自身を除く): 7127765

約数列:

[1, 5, 17, 25, 85, 89, 425, 445, 571, 1513, 2225, 2855, 7565, 9707, 14275, 37825, 48535, 50819, 242675, 254095, 863923, 1270475, 4319615, 21598075]

約数ペア:

[(1, 21598075), (5, 4319615), (17, 1270475), (25, 863923), (85, 254095), (89, 242675), (425, 50819), (445, 48535), (571, 37825), (1513, 14275), (2225, 9707), (2855, 7565)]