28472421

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{991}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 38870528

約数和(自身を除く): 10398107

約数列:

[1, 3, 61, 157, 183, 471, 991, 2973, 9577, 28731, 60451, 155587, 181353, 466761, 9490807, 28472421]

約数ペア:

[(1, 28472421), (3, 9490807), (61, 466761), (157, 181353), (183, 155587), (471, 60451), (991, 28731), (2973, 9577)]