51427215

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{281}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 105316848

約数和(自身を除く): 53889633

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 83, 105, 147, 245, 249, 281, 315, 415, 441, 581, 735, 747, 843, 1245, 1405, 1743, 1967, 2205, 2529, 2905, 3735, 4067, 4215, 5229, 5901, 8715, 9835, 12201, 12645, 13769, 17703, 20335, 23323, 26145, 29505, 36603, 41307, 61005, 68845, 69969, 88515, 116615, 123921, 163261, 183015, 206535, 209907, 349845, 489783, 619605, 816305, 1049535, 1142827, 1469349, 2448915, 3428481, 5714135, 7346745, 10285443, 17142405, 51427215]

約数ペア:

[(1, 51427215), (3, 17142405), (5, 10285443), (7, 7346745), (9, 5714135), (15, 3428481), (21, 2448915), (35, 1469349), (45, 1142827), (49, 1049535), (63, 816305), (83, 619605), (105, 489783), (147, 349845), (245, 209907), (249, 206535), (281, 183015), (315, 163261), (415, 123921), (441, 116615), (581, 88515), (735, 69969), (747, 68845), (843, 61005), (1245, 41307), (1405, 36603), (1743, 29505), (1967, 26145), (2205, 23323), (2529, 20335), (2905, 17703), (3735, 13769), (4067, 12645), (4215, 12201), (5229, 9835), (5901, 8715)]