19710621

素因数分解:

$3^4\times 7^1\times {\mathrm{34763}}^1$

素因数の和:34782

約数の個数: 20

約数和(自身を含む): 33651552

約数和(自身を除く): 13940931

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 34763, 104289, 243341, 312867, 730023, 938601, 2190069, 2815803, 6570207, 19710621]

約数ペア:

[(1, 19710621), (3, 6570207), (7, 2815803), (9, 2190069), (21, 938601), (27, 730023), (63, 312867), (81, 243341), (189, 104289), (567, 34763)]