28746915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1427}}^1$

素因数の和:1531

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 20604765

約数列:

[1, 3, 5, 15, 17, 51, 79, 85, 237, 255, 395, 1185, 1343, 1427, 4029, 4281, 6715, 7135, 20145, 21405, 24259, 72777, 112733, 121295, 338199, 363885, 563665, 1690995, 1916461, 5749383, 9582305, 28746915]

約数ペア:

[(1, 28746915), (3, 9582305), (5, 5749383), (15, 1916461), (17, 1690995), (51, 563665), (79, 363885), (85, 338199), (237, 121295), (255, 112733), (395, 72777), (1185, 24259), (1343, 21405), (1427, 20145), (4029, 7135), (4281, 6715)]