18077864

素因数分解:

$2^3\times 7^2\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 39890880

約数和(自身を除く): 21813016

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 107, 196, 214, 392, 428, 431, 749, 856, 862, 1498, 1724, 2996, 3017, 3448, 5243, 5992, 6034, 10486, 12068, 20972, 21119, 24136, 41944, 42238, 46117, 84476, 92234, 168952, 184468, 322819, 368936, 645638, 1291276, 2259733, 2582552, 4519466, 9038932, 18077864]

約数ペア:

[(1, 18077864), (2, 9038932), (4, 4519466), (7, 2582552), (8, 2259733), (14, 1291276), (28, 645638), (49, 368936), (56, 322819), (98, 184468), (107, 168952), (196, 92234), (214, 84476), (392, 46117), (428, 42238), (431, 41944), (749, 24136), (856, 21119), (862, 20972), (1498, 12068), (1724, 10486), (2996, 6034), (3017, 5992), (3448, 5243)]