21254199

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8867}}^1$

素因数の和:8934

約数の個数: 16

約数和(自身を含む): 30647808

約数和(自身を除く): 9393609

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 8867, 26601, 150739, 416749, 452217, 1250247, 7084733, 21254199]

約数ペア:

[(1, 21254199), (3, 7084733), (17, 1250247), (47, 452217), (51, 416749), (141, 150739), (799, 26601), (2397, 8867)]