9970821

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1567}}^1$

素因数の和:1681

約数の個数: 24

約数和(自身を含む): 16633344

約数和(自身を除く): 6662523

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 1567, 2121, 4701, 6363, 10969, 14103, 32907, 98721, 158267, 474801, 1107869, 1424403, 3323607, 9970821]

約数ペア:

[(1, 9970821), (3, 3323607), (7, 1424403), (9, 1107869), (21, 474801), (63, 158267), (101, 98721), (303, 32907), (707, 14103), (909, 10969), (1567, 6363), (2121, 4701)]