81176277

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 135976320

約数和(自身を除く): 54800043

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 169, 257, 267, 273, 507, 623, 771, 1157, 1183, 1799, 1869, 3341, 3471, 3549, 5397, 8099, 10023, 15041, 22873, 23387, 24297, 43433, 45123, 68619, 70161, 105287, 130299, 160111, 297349, 304031, 315861, 480333, 892047, 912093, 2081443, 3865537, 6244329, 11596611, 27058759, 81176277]

約数ペア:

[(1, 81176277), (3, 27058759), (7, 11596611), (13, 6244329), (21, 3865537), (39, 2081443), (89, 912093), (91, 892047), (169, 480333), (257, 315861), (267, 304031), (273, 297349), (507, 160111), (623, 130299), (771, 105287), (1157, 70161), (1183, 68619), (1799, 45123), (1869, 43433), (3341, 24297), (3471, 23387), (3549, 22873), (5397, 15041), (8099, 10023)]