20002157

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{439}}^1$

素因数の和:752

約数の個数: 16

約数和(自身を含む): 23992320

約数和(自身を除く): 3990163

約数列:

[1, 7, 23, 161, 283, 439, 1981, 3073, 6509, 10097, 45563, 70679, 124237, 869659, 2857451, 20002157]

約数ペア:

[(1, 20002157), (7, 2857451), (23, 869659), (161, 124237), (283, 70679), (439, 45563), (1981, 10097), (3073, 6509)]