209700865

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{20389}}^1$

素因数の和:20433

約数の個数: 24

約数和(自身を含む): 292881960

約数和(自身を除く): 83181095

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 2057, 10285, 20389, 101945, 224279, 346613, 1121395, 1733065, 2467069, 3812743, 12335345, 19063715, 41940173, 209700865]

約数ペア:

[(1, 209700865), (5, 41940173), (11, 19063715), (17, 12335345), (55, 3812743), (85, 2467069), (121, 1733065), (187, 1121395), (605, 346613), (935, 224279), (2057, 101945), (10285, 20389)]