20672717

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:404

約数の個数: 16

約数和(自身を含む): 22915200

約数和(自身を除く): 2242483

約数列:

[1, 13, 61, 131, 199, 793, 1703, 2587, 7991, 12139, 26069, 103883, 157807, 338897, 1590209, 20672717]

約数ペア:

[(1, 20672717), (13, 1590209), (61, 338897), (131, 157807), (199, 103883), (793, 26069), (1703, 12139), (2587, 7991)]