21490410249

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{192613}}^1$

素因数の和:192667

約数の個数: 72

約数和(自身を含む): 41105368512

約数和(自身を除く): 19614958263

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 49, 63, 69, 77, 99, 147, 161, 207, 231, 253, 441, 483, 539, 693, 759, 1127, 1449, 1617, 1771, 2277, 3381, 4851, 5313, 10143, 12397, 15939, 37191, 111573, 192613, 577839, 1348291, 1733517, 2118743, 4044873, 4430099, 6356229, 9438037, 12134619, 13290297, 14831201, 19068687, 28314111, 31010693, 39870891, 44493603, 48731089, 84942333, 93032079, 103818407, 133480809, 146193267, 217074851, 279096237, 311455221, 341117623, 438579801, 651224553, 934365663, 1023352869, 1953673659, 2387823361, 3070058607, 7163470083, 21490410249]

約数ペア:

[(1, 21490410249), (3, 7163470083), (7, 3070058607), (9, 2387823361), (11, 1953673659), (21, 1023352869), (23, 934365663), (33, 651224553), (49, 438579801), (63, 341117623), (69, 311455221), (77, 279096237), (99, 217074851), (147, 146193267), (161, 133480809), (207, 103818407), (231, 93032079), (253, 84942333), (441, 48731089), (483, 44493603), (539, 39870891), (693, 31010693), (759, 28314111), (1127, 19068687), (1449, 14831201), (1617, 13290297), (1771, 12134619), (2277, 9438037), (3381, 6356229), (4851, 4430099), (5313, 4044873), (10143, 2118743), (12397, 1733517), (15939, 1348291), (37191, 577839), (111573, 192613)]