20019902

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{26981}}^1$

素因数の和:27043

約数の個数: 16

約数和(自身を含む): 34968672

約数和(自身を除く): 14948770

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 26981, 53962, 188867, 377734, 1429993, 2859986, 10009951, 20019902]

約数ペア:

[(1, 20019902), (2, 10009951), (7, 2859986), (14, 1429993), (53, 377734), (106, 188867), (371, 53962), (742, 26981)]