21427172

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1093}}^1$

素因数の和:1152

約数の個数: 36

約数和(自身を含む): 42042420

約数和(自身を除く): 20615248

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 169, 338, 377, 676, 754, 1093, 1508, 2186, 4372, 4901, 9802, 14209, 19604, 28418, 31697, 56836, 63394, 126788, 184717, 369434, 412061, 738868, 824122, 1648244, 5356793, 10713586, 21427172]

約数ペア:

[(1, 21427172), (2, 10713586), (4, 5356793), (13, 1648244), (26, 824122), (29, 738868), (52, 412061), (58, 369434), (116, 184717), (169, 126788), (338, 63394), (377, 56836), (676, 31697), (754, 28418), (1093, 19604), (1508, 14209), (2186, 9802), (4372, 4901)]