216810055

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{80449}}^1$

素因数の和:80479

約数の個数: 24

約数和(自身を含む): 330166800

約数和(自身を除く): 113356745

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 80449, 402245, 563143, 884939, 2815715, 3942001, 4424695, 6194573, 19710005, 30972865, 43362011, 216810055]

約数ペア:

[(1, 216810055), (5, 43362011), (7, 30972865), (11, 19710005), (35, 6194573), (49, 4424695), (55, 3942001), (77, 2815715), (245, 884939), (385, 563143), (539, 402245), (2695, 80449)]