28188705

素因数分解:

$3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3607}}^1$

素因数の和:4136

約数の個数: 16

約数和(自身を含む): 45201024

約数和(自身を除く): 17012319

約数列:

[1, 3, 5, 15, 521, 1563, 2605, 3607, 7815, 10821, 18035, 54105, 1879247, 5637741, 9396235, 28188705]

約数ペア:

[(1, 28188705), (3, 9396235), (5, 5637741), (15, 1879247), (521, 54105), (1563, 18035), (2605, 10821), (3607, 7815)]