18717724

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{433}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 33466608

約数和(自身を除く): 14748884

約数列:

[1, 2, 4, 101, 107, 202, 214, 404, 428, 433, 866, 1732, 10807, 21614, 43228, 43733, 46331, 87466, 92662, 174932, 185324, 4679431, 9358862, 18717724]

約数ペア:

[(1, 18717724), (2, 9358862), (4, 4679431), (101, 185324), (107, 174932), (202, 92662), (214, 87466), (404, 46331), (428, 43733), (433, 43228), (866, 21614), (1732, 10807)]