18984679

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{983}}^1$

素因数の和:1110

約数の個数: 16

約数和(自身を含む): 22671360

約数和(自身を除く): 3686681

約数列:

[1, 7, 31, 89, 217, 623, 983, 2759, 6881, 19313, 30473, 87487, 213311, 612409, 2712097, 18984679]

約数ペア:

[(1, 18984679), (7, 2712097), (31, 612409), (89, 213311), (217, 87487), (623, 30473), (983, 19313), (2759, 6881)]