28031865

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26321}}^1$

素因数の和:26400

約数の個数: 16

約数和(自身を含む): 45484416

約数和(自身を除く): 17452551

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 26321, 78963, 131605, 394815, 1868791, 5606373, 9343955, 28031865]

約数ペア:

[(1, 28031865), (3, 9343955), (5, 5606373), (15, 1868791), (71, 394815), (213, 131605), (355, 78963), (1065, 26321)]