20851263

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1879}}^1$

素因数の和:2028

約数の個数: 20

約数和(自身を含む): 31392240

約数和(自身を除く): 10540977

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 1879, 3699, 5637, 11097, 16911, 50733, 152199, 257423, 772269, 2316807, 6950421, 20851263]

約数ペア:

[(1, 20851263), (3, 6950421), (9, 2316807), (27, 772269), (81, 257423), (137, 152199), (411, 50733), (1233, 16911), (1879, 11097), (3699, 5637)]