19198863

素因数分解:

$3^4\times {\mathrm{421}}^1\times {\mathrm{563}}^1$

素因数の和:996

約数の個数: 20

約数和(自身を含む): 28798968

約数和(自身を除く): 9600105

約数列:

[1, 3, 9, 27, 81, 421, 563, 1263, 1689, 3789, 5067, 11367, 15201, 34101, 45603, 237023, 711069, 2133207, 6399621, 19198863]

約数ペア:

[(1, 19198863), (3, 6399621), (9, 2133207), (27, 711069), (81, 237023), (421, 45603), (563, 34101), (1263, 15201), (1689, 11367), (3789, 5067)]