21565418

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 41477184

約数和(自身を除く): 19911766

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 251, 266, 323, 361, 502, 646, 722, 1757, 2261, 2527, 3514, 4267, 4522, 4769, 5054, 6137, 8534, 9538, 12274, 29869, 33383, 42959, 59738, 66766, 81073, 85918, 90611, 162146, 181222, 567511, 634277, 1135022, 1268554, 1540387, 3080774, 10782709, 21565418]

約数ペア:

[(1, 21565418), (2, 10782709), (7, 3080774), (14, 1540387), (17, 1268554), (19, 1135022), (34, 634277), (38, 567511), (119, 181222), (133, 162146), (238, 90611), (251, 85918), (266, 81073), (323, 66766), (361, 59738), (502, 42959), (646, 33383), (722, 29869), (1757, 12274), (2261, 9538), (2527, 8534), (3514, 6137), (4267, 5054), (4522, 4769)]