19179905

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{461}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 23650704

約数和(自身を除く): 4470799

約数列:

[1, 5, 53, 157, 265, 461, 785, 2305, 8321, 24433, 41605, 72377, 122165, 361885, 3835981, 19179905]

約数ペア:

[(1, 19179905), (5, 3835981), (53, 361885), (157, 122165), (265, 72377), (461, 41605), (785, 24433), (2305, 8321)]