21097782

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{68947}}^1$

素因数の和:68972

約数の個数: 24

約数和(自身を含む): 48401496

約数和(自身を除く): 27303714

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 68947, 137894, 206841, 413682, 620523, 1172099, 1241046, 2344198, 3516297, 7032594, 10548891, 21097782]

約数ペア:

[(1, 21097782), (2, 10548891), (3, 7032594), (6, 3516297), (9, 2344198), (17, 1241046), (18, 1172099), (34, 620523), (51, 413682), (102, 206841), (153, 137894), (306, 68947)]