1990807

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:318

約数の個数: 16

約数和(自身を含む): 2483712

約数和(自身を除く): 492905

約数列:

[1, 7, 13, 91, 131, 167, 917, 1169, 1703, 2171, 11921, 15197, 21877, 153139, 284401, 1990807]

約数ペア:

[(1, 1990807), (7, 284401), (13, 153139), (91, 21877), (131, 15197), (167, 11921), (917, 2171), (1169, 1703)]