18990166

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23561}}^1$

素因数の和:23607

約数の個数: 16

約数和(自身を含む): 31667328

約数和(自身を除く): 12677162

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 23561, 47122, 306293, 612586, 730391, 1460782, 9495083, 18990166]

約数ペア:

[(1, 18990166), (2, 9495083), (13, 1460782), (26, 730391), (31, 612586), (62, 306293), (403, 47122), (806, 23561)]