212501961

素因数分解:

$3^4\times 7^1\times {\mathrm{374783}}^1$

素因数の和:374802

約数の個数: 20

約数和(自身を含む): 362790912

約数和(自身を除く): 150288951

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 374783, 1124349, 2623481, 3373047, 7870443, 10119141, 23611329, 30357423, 70833987, 212501961]

約数ペア:

[(1, 212501961), (3, 70833987), (7, 30357423), (9, 23611329), (21, 10119141), (27, 7870443), (63, 3373047), (81, 2623481), (189, 1124349), (567, 374783)]