215371079

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{164531}}^1$

素因数の和:164566

約数の個数: 16

約数和(自身を含む): 284311296

約数和(自身を除く): 68940217

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 164531, 1151717, 1809841, 2797027, 12668887, 19579189, 30767297, 215371079]

約数ペア:

[(1, 215371079), (7, 30767297), (11, 19579189), (17, 12668887), (77, 2797027), (119, 1809841), (187, 1151717), (1309, 164531)]