19963086

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27937074

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 53, 66, 78, 106, 143, 159, 286, 318, 429, 439, 583, 689, 858, 878, 1166, 1317, 1378, 1749, 2067, 2634, 3498, 4134, 4829, 5707, 7579, 9658, 11414, 14487, 15158, 17121, 22737, 23267, 28974, 34242, 45474, 46534, 62777, 69801, 125554, 139602, 188331, 255937, 302471, 376662, 511874, 604942, 767811, 907413, 1535622, 1814826, 3327181, 6654362, 9981543, 19963086]

約数ペア:

[(1, 19963086), (2, 9981543), (3, 6654362), (6, 3327181), (11, 1814826), (13, 1535622), (22, 907413), (26, 767811), (33, 604942), (39, 511874), (53, 376662), (66, 302471), (78, 255937), (106, 188331), (143, 139602), (159, 125554), (286, 69801), (318, 62777), (429, 46534), (439, 45474), (583, 34242), (689, 28974), (858, 23267), (878, 22737), (1166, 17121), (1317, 15158), (1378, 14487), (1749, 11414), (2067, 9658), (2634, 7579), (3498, 5707), (4134, 4829)]