18945278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{27779}}^1$

素因数の和:27823

約数の個数: 16

約数和(自身を含む): 32002560

約数和(自身を除く): 13057282

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 27779, 55558, 305569, 611138, 861149, 1722298, 9472639, 18945278]

約数ペア:

[(1, 18945278), (2, 9472639), (11, 1722298), (22, 861149), (31, 611138), (62, 305569), (341, 55558), (682, 27779)]