21294224

素因数分解:

$2^4\times 7^2\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:352

約数の個数: 60

約数和(自身を含む): 48578364

約数和(自身を除く): 27284140

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 157, 173, 196, 314, 346, 392, 628, 692, 784, 1099, 1211, 1256, 1384, 2198, 2422, 2512, 2768, 4396, 4844, 7693, 8477, 8792, 9688, 15386, 16954, 17584, 19376, 27161, 30772, 33908, 54322, 61544, 67816, 108644, 123088, 135632, 190127, 217288, 380254, 434576, 760508, 1330889, 1521016, 2661778, 3042032, 5323556, 10647112, 21294224]

約数ペア:

[(1, 21294224), (2, 10647112), (4, 5323556), (7, 3042032), (8, 2661778), (14, 1521016), (16, 1330889), (28, 760508), (49, 434576), (56, 380254), (98, 217288), (112, 190127), (157, 135632), (173, 123088), (196, 108644), (314, 67816), (346, 61544), (392, 54322), (628, 33908), (692, 30772), (784, 27161), (1099, 19376), (1211, 17584), (1256, 16954), (1384, 15386), (2198, 9688), (2422, 8792), (2512, 8477), (2768, 7693), (4396, 4844)]