19726371

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1091}}^1$

素因数の和:1152

約数の個数: 36

約数和(自身を含む): 33985224

約数和(自身を除く): 14258853

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 1091, 2009, 2583, 3273, 6027, 7637, 9819, 18081, 22911, 44731, 53459, 68733, 134193, 160377, 313117, 402579, 481131, 939351, 2191819, 2818053, 6575457, 19726371]

約数ペア:

[(1, 19726371), (3, 6575457), (7, 2818053), (9, 2191819), (21, 939351), (41, 481131), (49, 402579), (63, 313117), (123, 160377), (147, 134193), (287, 68733), (369, 53459), (441, 44731), (861, 22911), (1091, 18081), (2009, 9819), (2583, 7637), (3273, 6027)]