71847867

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 124185600

約数和(自身を除く): 52337733

約数列:

[1, 3, 7, 13, 21, 39, 41, 49, 91, 123, 131, 147, 273, 287, 343, 393, 533, 637, 861, 917, 1029, 1599, 1703, 1911, 2009, 2751, 3731, 4459, 5109, 5371, 6027, 6419, 11193, 11921, 13377, 14063, 16113, 19257, 26117, 35763, 37597, 42189, 44933, 69823, 78351, 83447, 112791, 134799, 182819, 209469, 250341, 263179, 488761, 548457, 584129, 789537, 1466283, 1752387, 1842253, 3421327, 5526759, 10263981, 23949289, 71847867]

約数ペア:

[(1, 71847867), (3, 23949289), (7, 10263981), (13, 5526759), (21, 3421327), (39, 1842253), (41, 1752387), (49, 1466283), (91, 789537), (123, 584129), (131, 548457), (147, 488761), (273, 263179), (287, 250341), (343, 209469), (393, 182819), (533, 134799), (637, 112791), (861, 83447), (917, 78351), (1029, 69823), (1599, 44933), (1703, 42189), (1911, 37597), (2009, 35763), (2751, 26117), (3731, 19257), (4459, 16113), (5109, 14063), (5371, 13377), (6027, 11921), (6419, 11193)]