21963405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{86131}}^1$

素因数の和:86156

約数の個数: 16

約数和(自身を含む): 37209024

約数和(自身を除く): 15245619

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 86131, 258393, 430655, 1291965, 1464227, 4392681, 7321135, 21963405]

約数ペア:

[(1, 21963405), (3, 7321135), (5, 4392681), (15, 1464227), (17, 1291965), (51, 430655), (85, 258393), (255, 86131)]