21355238

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{1489}}^1$

素因数の和:1663

約数の個数: 16

約数和(自身を含む): 32827680

約数和(自身を除く): 11472442

約数列:

[1, 2, 71, 101, 142, 202, 1489, 2978, 7171, 14342, 105719, 150389, 211438, 300778, 10677619, 21355238]

約数ペア:

[(1, 21355238), (2, 10677619), (71, 300778), (101, 211438), (142, 150389), (202, 105719), (1489, 14342), (2978, 7171)]