21505588

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1097}}^1$

素因数の和:1156

約数の個数: 36

約数和(自身を含む): 42196140

約数和(自身を除く): 20690552

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 169, 338, 377, 676, 754, 1097, 1508, 2194, 4388, 4901, 9802, 14261, 19604, 28522, 31813, 57044, 63626, 127252, 185393, 370786, 413569, 741572, 827138, 1654276, 5376397, 10752794, 21505588]

約数ペア:

[(1, 21505588), (2, 10752794), (4, 5376397), (13, 1654276), (26, 827138), (29, 741572), (52, 413569), (58, 370786), (116, 185393), (169, 127252), (338, 63626), (377, 57044), (676, 31813), (754, 28522), (1097, 19604), (1508, 14261), (2194, 9802), (4388, 4901)]