9901605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{521}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 18240768

約数和(自身を除く): 8339163

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 181, 521, 543, 905, 1267, 1563, 2605, 2715, 3647, 3801, 6335, 7815, 10941, 18235, 19005, 54705, 94301, 282903, 471505, 660107, 1414515, 1980321, 3300535, 9901605]

約数ペア:

[(1, 9901605), (3, 3300535), (5, 1980321), (7, 1414515), (15, 660107), (21, 471505), (35, 282903), (105, 94301), (181, 54705), (521, 19005), (543, 18235), (905, 10941), (1267, 7815), (1563, 6335), (2605, 3801), (2715, 3647)]