19865031

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{4297}}^1$

素因数の和:4390

約数の個数: 16

約数和(自身を含む): 28057344

約数和(自身を除く): 8192313

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4297, 4623, 12891, 98831, 287899, 296493, 863697, 6621677, 19865031]

約数ペア:

[(1, 19865031), (3, 6621677), (23, 863697), (67, 296493), (69, 287899), (201, 98831), (1541, 12891), (4297, 4623)]