21186774

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{929}}^1$

素因数の和:1125

約数の個数: 48

約数和(自身を含む): 52809120

約数和(自身を除く): 31622346

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 181, 362, 543, 929, 1086, 1267, 1629, 1858, 2534, 2787, 3258, 3801, 5574, 6503, 7602, 8361, 11403, 13006, 16722, 19509, 22806, 39018, 58527, 117054, 168149, 336298, 504447, 1008894, 1177043, 1513341, 2354086, 3026682, 3531129, 7062258, 10593387, 21186774]

約数ペア:

[(1, 21186774), (2, 10593387), (3, 7062258), (6, 3531129), (7, 3026682), (9, 2354086), (14, 1513341), (18, 1177043), (21, 1008894), (42, 504447), (63, 336298), (126, 168149), (181, 117054), (362, 58527), (543, 39018), (929, 22806), (1086, 19509), (1267, 16722), (1629, 13006), (1858, 11403), (2534, 8361), (2787, 7602), (3258, 6503), (3801, 5574)]