256021911

素因数分解:

$3^3\times {\mathrm{457}}^1\times {\mathrm{20749}}^1$

素因数の和:21215

約数の個数: 16

約数和(自身を含む): 380140000

約数和(自身を除く): 124118089

約数列:

[1, 3, 9, 27, 457, 1371, 4113, 12339, 20749, 62247, 186741, 560223, 9482293, 28446879, 85340637, 256021911]

約数ペア:

[(1, 256021911), (3, 85340637), (9, 28446879), (27, 9482293), (457, 560223), (1371, 186741), (4113, 62247), (12339, 20749)]