19729648

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9413}}^1$

素因数の和:9552

約数の個数: 20

約数和(自身を含む): 38522088

約数和(自身を除く): 18792440

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9413, 18826, 37652, 75304, 150608, 1233103, 2466206, 4932412, 9864824, 19729648]

約数ペア:

[(1, 19729648), (2, 9864824), (4, 4932412), (8, 2466206), (16, 1233103), (131, 150608), (262, 75304), (524, 37652), (1048, 18826), (2096, 9413)]