21315926

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{2003}}^1$

素因数の和:2335

約数の個数: 16

約数和(自身を含む): 33979824

約数和(自身を除く): 12663898

約数列:

[1, 2, 17, 34, 313, 626, 2003, 4006, 5321, 10642, 34051, 68102, 626939, 1253878, 10657963, 21315926]

約数ペア:

[(1, 21315926), (2, 10657963), (17, 1253878), (34, 626939), (313, 68102), (626, 34051), (2003, 10642), (4006, 5321)]