20815769

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{719}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 3134311

約数列:

[1, 13, 17, 131, 221, 719, 1703, 2227, 9347, 12223, 28951, 94189, 158899, 1224457, 1601213, 20815769]

約数ペア:

[(1, 20815769), (13, 1601213), (17, 1224457), (131, 158899), (221, 94189), (719, 28951), (1703, 12223), (2227, 9347)]