28018809

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{34211}}^1$

素因数の和:34237

約数の個数: 24

約数和(自身を含む): 49812672

約数和(自身を除く): 21793863

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 34211, 102633, 239477, 307899, 444743, 718431, 1334229, 2155293, 3113201, 4002687, 9339603, 28018809]

約数ペア:

[(1, 28018809), (3, 9339603), (7, 4002687), (9, 3113201), (13, 2155293), (21, 1334229), (39, 718431), (63, 444743), (91, 307899), (117, 239477), (273, 102633), (819, 34211)]