18898313

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1193}}^1$

素因数の和:1304

約数の個数: 16

約数和(自身を含む): 22619136

約数和(自身を除く): 3720823

約数列:

[1, 7, 31, 73, 217, 511, 1193, 2263, 8351, 15841, 36983, 87089, 258881, 609623, 2699759, 18898313]

約数ペア:

[(1, 18898313), (7, 2699759), (31, 609623), (73, 258881), (217, 87089), (511, 36983), (1193, 15841), (2263, 8351)]