21046256

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1553}}^1$

素因数の和:1590

約数の個数: 60

約数和(自身を含む): 51257136

約数和(自身を除く): 30210880

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 121, 154, 176, 242, 308, 484, 616, 847, 968, 1232, 1553, 1694, 1936, 3106, 3388, 6212, 6776, 10871, 12424, 13552, 17083, 21742, 24848, 34166, 43484, 68332, 86968, 119581, 136664, 173936, 187913, 239162, 273328, 375826, 478324, 751652, 956648, 1315391, 1503304, 1913296, 2630782, 3006608, 5261564, 10523128, 21046256]

約数ペア:

[(1, 21046256), (2, 10523128), (4, 5261564), (7, 3006608), (8, 2630782), (11, 1913296), (14, 1503304), (16, 1315391), (22, 956648), (28, 751652), (44, 478324), (56, 375826), (77, 273328), (88, 239162), (112, 187913), (121, 173936), (154, 136664), (176, 119581), (242, 86968), (308, 68332), (484, 43484), (616, 34166), (847, 24848), (968, 21742), (1232, 17083), (1553, 13552), (1694, 12424), (1936, 10871), (3106, 6776), (3388, 6212)]