21689696

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2617}}^1$

素因数の和:2671

約数の個数: 48

約数和(自身を含む): 50139936

約数和(自身を除く): 28450240

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 74, 112, 148, 224, 259, 296, 518, 592, 1036, 1184, 2072, 2617, 4144, 5234, 8288, 10468, 18319, 20936, 36638, 41872, 73276, 83744, 96829, 146552, 193658, 293104, 387316, 586208, 677803, 774632, 1355606, 1549264, 2711212, 3098528, 5422424, 10844848, 21689696]

約数ペア:

[(1, 21689696), (2, 10844848), (4, 5422424), (7, 3098528), (8, 2711212), (14, 1549264), (16, 1355606), (28, 774632), (32, 677803), (37, 586208), (56, 387316), (74, 293104), (112, 193658), (148, 146552), (224, 96829), (259, 83744), (296, 73276), (518, 41872), (592, 36638), (1036, 20936), (1184, 18319), (2072, 10468), (2617, 8288), (4144, 5234)]