1999399683

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{221197}}^1$

素因数の和:221354

約数の個数: 16

約数和(自身を含む): 2803021056

約数和(自身を除く): 803621373

約数列:

[1, 3, 23, 69, 131, 393, 3013, 9039, 221197, 663591, 5087531, 15262593, 28976807, 86930421, 666466561, 1999399683]

約数ペア:

[(1, 1999399683), (3, 666466561), (23, 86930421), (69, 28976807), (131, 15262593), (393, 5087531), (3013, 663591), (9039, 221197)]