218970829

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^2$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 289770048

約数和(自身を除く): 70799219

約数列:

[1, 7, 11, 17, 77, 119, 187, 409, 1309, 2863, 4499, 6953, 31493, 48671, 76483, 167281, 535381, 1170967, 1840091, 2843777, 12880637, 19906439, 31281547, 218970829]

約数ペア:

[(1, 218970829), (7, 31281547), (11, 19906439), (17, 12880637), (77, 2843777), (119, 1840091), (187, 1170967), (409, 535381), (1309, 167281), (2863, 76483), (4499, 48671), (6953, 31493)]