21654295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4217}}^1$

素因数の和:4314

約数の個数: 16

約数和(自身を含む): 28344960

約数和(自身を除く): 6690665

約数列:

[1, 5, 13, 65, 79, 395, 1027, 4217, 5135, 21085, 54821, 274105, 333143, 1665715, 4330859, 21654295]

約数ペア:

[(1, 21654295), (5, 4330859), (13, 1665715), (65, 333143), (79, 274105), (395, 54821), (1027, 21085), (4217, 5135)]