1989968391

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{719}}^1\times {\mathrm{727}}^1$

素因数の和:1505

約数の個数: 40

約数和(自身を含む): 3044321280

約数和(自身を除く): 1054352889

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 719, 727, 1269, 2157, 2181, 3807, 6471, 6543, 19413, 19629, 33793, 34169, 58239, 58887, 101379, 102507, 304137, 307521, 522713, 912411, 922563, 1568139, 2737233, 2767689, 4704417, 14113251, 24567511, 42339753, 73702533, 221107599, 663322797, 1989968391]

約数ペア:

[(1, 1989968391), (3, 663322797), (9, 221107599), (27, 73702533), (47, 42339753), (81, 24567511), (141, 14113251), (423, 4704417), (719, 2767689), (727, 2737233), (1269, 1568139), (2157, 922563), (2181, 912411), (3807, 522713), (6471, 307521), (6543, 304137), (19413, 102507), (19629, 101379), (33793, 58887), (34169, 58239)]