21514185

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{887}}^1$

素因数の和:923

約数の個数: 72

約数和(自身を含む): 47376576

約数和(自身を除く): 25862391

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 63, 77, 99, 105, 147, 165, 231, 245, 315, 385, 441, 495, 539, 693, 735, 887, 1155, 1617, 2205, 2661, 2695, 3465, 4435, 4851, 6209, 7983, 8085, 9757, 13305, 18627, 24255, 29271, 31045, 39915, 43463, 48785, 55881, 68299, 87813, 93135, 130389, 146355, 204897, 217315, 279405, 341495, 391167, 439065, 478093, 614691, 651945, 1024485, 1434279, 1955835, 2390465, 3073455, 4302837, 7171395, 21514185]

約数ペア:

[(1, 21514185), (3, 7171395), (5, 4302837), (7, 3073455), (9, 2390465), (11, 1955835), (15, 1434279), (21, 1024485), (33, 651945), (35, 614691), (45, 478093), (49, 439065), (55, 391167), (63, 341495), (77, 279405), (99, 217315), (105, 204897), (147, 146355), (165, 130389), (231, 93135), (245, 87813), (315, 68299), (385, 55881), (441, 48785), (495, 43463), (539, 39915), (693, 31045), (735, 29271), (887, 24255), (1155, 18627), (1617, 13305), (2205, 9757), (2661, 8085), (2695, 7983), (3465, 6209), (4435, 4851)]