18940264

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2543}}^1$

素因数の和:2582

約数の個数: 48

約数和(自身を含む): 43502400

約数和(自身を除く): 24562136

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 2543, 3724, 5086, 7448, 10172, 17801, 20344, 35602, 48317, 71204, 96634, 124607, 142408, 193268, 249214, 338219, 386536, 498428, 676438, 996856, 1352876, 2367533, 2705752, 4735066, 9470132, 18940264]

約数ペア:

[(1, 18940264), (2, 9470132), (4, 4735066), (7, 2705752), (8, 2367533), (14, 1352876), (19, 996856), (28, 676438), (38, 498428), (49, 386536), (56, 338219), (76, 249214), (98, 193268), (133, 142408), (152, 124607), (196, 96634), (266, 71204), (392, 48317), (532, 35602), (931, 20344), (1064, 17801), (1862, 10172), (2543, 7448), (3724, 5086)]