28641291

素因数分解:

$3^1\times 7^1\times {\mathrm{787}}^1\times {\mathrm{1733}}^1$

素因数の和:2530

約数の個数: 16

約数和(自身を含む): 43724544

約数和(自身を除く): 15083253

約数列:

[1, 3, 7, 21, 787, 1733, 2361, 5199, 5509, 12131, 16527, 36393, 1363871, 4091613, 9547097, 28641291]

約数ペア:

[(1, 28641291), (3, 9547097), (7, 4091613), (21, 1363871), (787, 36393), (1733, 16527), (2361, 12131), (5199, 5509)]