18913730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1237}}^1$

素因数の和:1394

約数の個数: 32

約数和(自身を含む): 37437120

約数和(自身を除く): 18523390

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1237, 1390, 1529, 2474, 3058, 6185, 7645, 12370, 13607, 15290, 27214, 68035, 136070, 171943, 343886, 859715, 1719430, 1891373, 3782746, 9456865, 18913730]

約数ペア:

[(1, 18913730), (2, 9456865), (5, 3782746), (10, 1891373), (11, 1719430), (22, 859715), (55, 343886), (110, 171943), (139, 136070), (278, 68035), (695, 27214), (1237, 15290), (1390, 13607), (1529, 12370), (2474, 7645), (3058, 6185)]