25643709

素因数分解:

$3^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:117

約数の個数: 80

約数和(自身を含む): 48787200

約数和(自身を除く): 23143491

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 71, 81, 91, 117, 147, 189, 213, 273, 343, 351, 441, 497, 567, 637, 639, 819, 923, 1029, 1053, 1323, 1491, 1911, 1917, 2457, 2769, 3087, 3479, 3969, 4459, 4473, 5733, 5751, 6461, 7371, 8307, 9261, 10437, 13377, 13419, 17199, 19383, 24353, 24921, 27783, 31311, 40131, 40257, 45227, 51597, 58149, 73059, 74763, 93933, 120393, 135681, 174447, 219177, 281799, 316589, 361179, 407043, 523341, 657531, 949767, 1221129, 1972593, 2849301, 3663387, 8547903, 25643709]

約数ペア:

[(1, 25643709), (3, 8547903), (7, 3663387), (9, 2849301), (13, 1972593), (21, 1221129), (27, 949767), (39, 657531), (49, 523341), (63, 407043), (71, 361179), (81, 316589), (91, 281799), (117, 219177), (147, 174447), (189, 135681), (213, 120393), (273, 93933), (343, 74763), (351, 73059), (441, 58149), (497, 51597), (567, 45227), (637, 40257), (639, 40131), (819, 31311), (923, 27783), (1029, 24921), (1053, 24353), (1323, 19383), (1491, 17199), (1911, 13419), (1917, 13377), (2457, 10437), (2769, 9261), (3087, 8307), (3479, 7371), (3969, 6461), (4459, 5751), (4473, 5733)]