15851871

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 72

約数和(自身を含む): 29955744

約数和(自身を除く): 14103873

約数列:

[1, 3, 7, 9, 17, 19, 21, 41, 51, 57, 63, 119, 123, 133, 153, 171, 287, 323, 357, 361, 369, 399, 697, 779, 861, 969, 1071, 1083, 1197, 2091, 2261, 2337, 2527, 2583, 2907, 3249, 4879, 5453, 6137, 6273, 6783, 7011, 7581, 13243, 14637, 14801, 16359, 18411, 20349, 22743, 39729, 42959, 43911, 44403, 49077, 55233, 92701, 103607, 119187, 128877, 133209, 251617, 278103, 310821, 386631, 754851, 834309, 932463, 1761319, 2264553, 5283957, 15851871]

約数ペア:

[(1, 15851871), (3, 5283957), (7, 2264553), (9, 1761319), (17, 932463), (19, 834309), (21, 754851), (41, 386631), (51, 310821), (57, 278103), (63, 251617), (119, 133209), (123, 128877), (133, 119187), (153, 103607), (171, 92701), (287, 55233), (323, 49077), (357, 44403), (361, 43911), (369, 42959), (399, 39729), (697, 22743), (779, 20349), (861, 18411), (969, 16359), (1071, 14801), (1083, 14637), (1197, 13243), (2091, 7581), (2261, 7011), (2337, 6783), (2527, 6273), (2583, 6137), (2907, 5453), (3249, 4879)]