19658457

素因数分解:

$3^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 37180416

約数和(自身を除く): 17521959

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 81, 91, 117, 127, 147, 189, 243, 273, 351, 381, 441, 567, 637, 819, 889, 1053, 1143, 1323, 1651, 1701, 1911, 2457, 2667, 3159, 3429, 3969, 4953, 5733, 6223, 7371, 8001, 10287, 11557, 11907, 14859, 17199, 18669, 22113, 24003, 30861, 34671, 44577, 51597, 56007, 72009, 80899, 104013, 133731, 154791, 168021, 216027, 242697, 312039, 401193, 504063, 728091, 936117, 1512189, 2184273, 2808351, 6552819, 19658457]

約数ペア:

[(1, 19658457), (3, 6552819), (7, 2808351), (9, 2184273), (13, 1512189), (21, 936117), (27, 728091), (39, 504063), (49, 401193), (63, 312039), (81, 242697), (91, 216027), (117, 168021), (127, 154791), (147, 133731), (189, 104013), (243, 80899), (273, 72009), (351, 56007), (381, 51597), (441, 44577), (567, 34671), (637, 30861), (819, 24003), (889, 22113), (1053, 18669), (1143, 17199), (1323, 14859), (1651, 11907), (1701, 11557), (1911, 10287), (2457, 8001), (2667, 7371), (3159, 6223), (3429, 5733), (3969, 4953)]