18840804968

素因数分解:

$2^3\times {\mathrm{251}}^1\times {\mathrm{281}}^1\times {\mathrm{33391}}^1$

素因数の和:33929

約数の個数: 32

約数和(自身を含む): 35594536320

約数和(自身を除く): 16753731352

約数列:

[1, 2, 4, 8, 251, 281, 502, 562, 1004, 1124, 2008, 2248, 33391, 66782, 70531, 133564, 141062, 267128, 282124, 564248, 8381141, 9382871, 16762282, 18765742, 33524564, 37531484, 67049128, 75062968, 2355100621, 4710201242, 9420402484, 18840804968]

約数ペア:

[(1, 18840804968), (2, 9420402484), (4, 4710201242), (8, 2355100621), (251, 75062968), (281, 67049128), (502, 37531484), (562, 33524564), (1004, 18765742), (1124, 16762282), (2008, 9382871), (2248, 8381141), (33391, 564248), (66782, 282124), (70531, 267128), (133564, 141062)]