20636079

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 9845841

約数列:

[1, 3, 17, 41, 51, 71, 123, 139, 213, 417, 697, 1207, 2091, 2363, 2911, 3621, 5699, 7089, 8733, 9869, 17097, 29607, 49487, 96883, 148461, 167773, 290649, 404629, 503319, 1213887, 6878693, 20636079]

約数ペア:

[(1, 20636079), (3, 6878693), (17, 1213887), (41, 503319), (51, 404629), (71, 290649), (123, 167773), (139, 148461), (213, 96883), (417, 49487), (697, 29607), (1207, 17097), (2091, 9869), (2363, 8733), (2911, 7089), (3621, 5699)]