18836993

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 22050816

約数和(自身を除く): 3213823

約数列:

[1, 7, 73, 191, 193, 511, 1337, 1351, 13943, 14089, 36863, 97601, 98623, 258041, 2690999, 18836993]

約数ペア:

[(1, 18836993), (7, 2690999), (73, 258041), (191, 98623), (193, 97601), (511, 36863), (1337, 14089), (1351, 13943)]