18209863

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{947}}^1$

素因数の和:1062

約数の個数: 16

約数和(自身を含む): 21659904

約数和(自身を除く): 3450041

約数列:

[1, 7, 41, 67, 287, 469, 947, 2747, 6629, 19229, 38827, 63449, 271789, 444143, 2601409, 18209863]

約数ペア:

[(1, 18209863), (7, 2601409), (41, 444143), (67, 271789), (287, 63449), (469, 38827), (947, 19229), (2747, 6629)]