28000005

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{15427}}^1$

素因数の和:15457

約数の個数: 24

約数和(自身を含む): 49246176

約数和(自身を除く): 21246171

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 15427, 46281, 77135, 169697, 231405, 509091, 848485, 1866667, 2545455, 5600001, 9333335, 28000005]

約数ペア:

[(1, 28000005), (3, 9333335), (5, 5600001), (11, 2545455), (15, 1866667), (33, 848485), (55, 509091), (121, 231405), (165, 169697), (363, 77135), (605, 46281), (1815, 15427)]