21450042

素因数分解:

$2^1\times 3^3\times {\mathrm{397223}}^1$

素因数の和:397234

約数の個数: 16

約数和(自身を含む): 47666880

約数和(自身を除く): 26216838

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 397223, 794446, 1191669, 2383338, 3575007, 7150014, 10725021, 21450042]

約数ペア:

[(1, 21450042), (2, 10725021), (3, 7150014), (6, 3575007), (9, 2383338), (18, 1191669), (27, 794446), (54, 397223)]