21896189

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:873

約数の個数: 24

約数和(自身を含む): 27770400

約数和(自身を除く): 5874211

約数列:

[1, 7, 19, 29, 49, 133, 203, 551, 811, 931, 1421, 3857, 5677, 15409, 23519, 26999, 39739, 107863, 164633, 446861, 755041, 1152431, 3128027, 21896189]

約数ペア:

[(1, 21896189), (7, 3128027), (19, 1152431), (29, 755041), (49, 446861), (133, 164633), (203, 107863), (551, 39739), (811, 26999), (931, 23519), (1421, 15409), (3857, 5677)]