21345696

素因数分解:

$2^5\times 3^2\times {\mathrm{137}}^1\times {\mathrm{541}}^1$

素因数の和:694

約数の個数: 72

約数和(自身を含む): 61257924

約数和(自身を除く): 39912228

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 137, 144, 274, 288, 411, 541, 548, 822, 1082, 1096, 1233, 1623, 1644, 2164, 2192, 2466, 3246, 3288, 4328, 4384, 4869, 4932, 6492, 6576, 8656, 9738, 9864, 12984, 13152, 17312, 19476, 19728, 25968, 38952, 39456, 51936, 74117, 77904, 148234, 155808, 222351, 296468, 444702, 592936, 667053, 889404, 1185872, 1334106, 1778808, 2371744, 2668212, 3557616, 5336424, 7115232, 10672848, 21345696]

約数ペア:

[(1, 21345696), (2, 10672848), (3, 7115232), (4, 5336424), (6, 3557616), (8, 2668212), (9, 2371744), (12, 1778808), (16, 1334106), (18, 1185872), (24, 889404), (32, 667053), (36, 592936), (48, 444702), (72, 296468), (96, 222351), (137, 155808), (144, 148234), (274, 77904), (288, 74117), (411, 51936), (541, 39456), (548, 38952), (822, 25968), (1082, 19728), (1096, 19476), (1233, 17312), (1623, 13152), (1644, 12984), (2164, 9864), (2192, 9738), (2466, 8656), (3246, 6576), (3288, 6492), (4328, 4932), (4384, 4869)]