20397636

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{26981}}^1$

素因数の和:27001

約数の個数: 48

約数和(自身を含む): 60439680

約数和(自身を除く): 40042044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 26981, 53962, 80943, 107924, 161886, 188867, 242829, 323772, 377734, 485658, 566601, 728487, 755468, 971316, 1133202, 1456974, 1699803, 2266404, 2913948, 3399606, 5099409, 6799212, 10198818, 20397636]

約数ペア:

[(1, 20397636), (2, 10198818), (3, 6799212), (4, 5099409), (6, 3399606), (7, 2913948), (9, 2266404), (12, 1699803), (14, 1456974), (18, 1133202), (21, 971316), (27, 755468), (28, 728487), (36, 566601), (42, 485658), (54, 377734), (63, 323772), (84, 242829), (108, 188867), (126, 161886), (189, 107924), (252, 80943), (378, 53962), (756, 26981)]