20423973

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 27737216

約数和(自身を除く): 7313243

約数列:

[1, 3, 103, 157, 309, 421, 471, 1263, 16171, 43363, 48513, 66097, 130089, 198291, 6807991, 20423973]

約数ペア:

[(1, 20423973), (3, 6807991), (103, 198291), (157, 130089), (309, 66097), (421, 48513), (471, 43363), (1263, 16171)]