28019145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1427}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 59222016

約数和(自身を除く): 31202871

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 935, 1155, 1309, 1427, 1785, 2805, 3927, 4281, 6545, 7135, 9989, 15697, 19635, 21405, 24259, 29967, 47091, 49945, 72777, 78485, 109879, 121295, 149835, 169813, 235455, 266849, 329637, 363885, 509439, 549395, 800547, 849065, 1334245, 1648185, 1867943, 2547195, 4002735, 5603829, 9339715, 28019145]

約数ペア:

[(1, 28019145), (3, 9339715), (5, 5603829), (7, 4002735), (11, 2547195), (15, 1867943), (17, 1648185), (21, 1334245), (33, 849065), (35, 800547), (51, 549395), (55, 509439), (77, 363885), (85, 329637), (105, 266849), (119, 235455), (165, 169813), (187, 149835), (231, 121295), (255, 109879), (357, 78485), (385, 72777), (561, 49945), (595, 47091), (935, 29967), (1155, 24259), (1309, 21405), (1427, 19635), (1785, 15697), (2805, 9989), (3927, 7135), (4281, 6545)]