81718182

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{7127}}^1$

素因数の和:7162

約数の個数: 72

約数和(自身を含む): 221837616

約数和(自身を除く): 140119434

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 234, 273, 294, 441, 546, 637, 819, 882, 1274, 1638, 1911, 3822, 5733, 7127, 11466, 14254, 21381, 42762, 49889, 64143, 92651, 99778, 128286, 149667, 185302, 277953, 299334, 349223, 449001, 555906, 648557, 698446, 833859, 898002, 1047669, 1297114, 1667718, 1945671, 2095338, 3143007, 3891342, 4539899, 5837013, 6286014, 9079798, 11674026, 13619697, 27239394, 40859091, 81718182]

約数ペア:

[(1, 81718182), (2, 40859091), (3, 27239394), (6, 13619697), (7, 11674026), (9, 9079798), (13, 6286014), (14, 5837013), (18, 4539899), (21, 3891342), (26, 3143007), (39, 2095338), (42, 1945671), (49, 1667718), (63, 1297114), (78, 1047669), (91, 898002), (98, 833859), (117, 698446), (126, 648557), (147, 555906), (182, 449001), (234, 349223), (273, 299334), (294, 277953), (441, 185302), (546, 149667), (637, 128286), (819, 99778), (882, 92651), (1274, 64143), (1638, 49889), (1911, 42762), (3822, 21381), (5733, 14254), (7127, 11466)]