25728339

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1291}}^1$

素因数の和:1387

約数の個数: 32

約数和(自身を含む): 42832384

約数和(自身を除く): 17104045

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 949, 1291, 1533, 2847, 3873, 6643, 9037, 16783, 19929, 27111, 50349, 94243, 117481, 282729, 352443, 659701, 1225159, 1979103, 3675477, 8576113, 25728339]

約数ペア:

[(1, 25728339), (3, 8576113), (7, 3675477), (13, 1979103), (21, 1225159), (39, 659701), (73, 352443), (91, 282729), (219, 117481), (273, 94243), (511, 50349), (949, 27111), (1291, 19929), (1533, 16783), (2847, 9037), (3873, 6643)]