1982991

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1046

約数の個数: 16

約数和(自身を含む): 2856960

約数和(自身を除く): 873969

約数列:

[1, 3, 23, 29, 69, 87, 667, 991, 2001, 2973, 22793, 28739, 68379, 86217, 660997, 1982991]

約数ペア:

[(1, 1982991), (3, 660997), (23, 86217), (29, 68379), (69, 28739), (87, 22793), (667, 2973), (991, 2001)]