19805103

素因数分解:

$3^2\times {\mathrm{421}}^1\times {\mathrm{5227}}^1$

素因数の和:5654

約数の個数: 12

約数和(自身を含む): 28680808

約数和(自身を除く): 8875705

約数列:

[1, 3, 9, 421, 1263, 3789, 5227, 15681, 47043, 2200567, 6601701, 19805103]

約数ペア:

[(1, 19805103), (3, 6601701), (9, 2200567), (421, 47043), (1263, 15681), (3789, 5227)]