18688846

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:520

約数の個数: 32

約数和(自身を含む): 32117760

約数和(自身を除く): 13428914

約数列:

[1, 2, 11, 22, 31, 62, 67, 134, 341, 409, 682, 737, 818, 1474, 2077, 4154, 4499, 8998, 12679, 22847, 25358, 27403, 45694, 54806, 139469, 278938, 301433, 602866, 849493, 1698986, 9344423, 18688846]

約数ペア:

[(1, 18688846), (2, 9344423), (11, 1698986), (22, 849493), (31, 602866), (62, 301433), (67, 278938), (134, 139469), (341, 54806), (409, 45694), (682, 27403), (737, 25358), (818, 22847), (1474, 12679), (2077, 8998), (4154, 4499)]