18514885

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1229}}^1$

素因数の和:1388

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 4864955

約数列:

[1, 5, 23, 115, 131, 655, 1229, 3013, 6145, 15065, 28267, 141335, 160999, 804995, 3702977, 18514885]

約数ペア:

[(1, 18514885), (5, 3702977), (23, 804995), (115, 160999), (131, 141335), (655, 28267), (1229, 15065), (3013, 6145)]