1320247971

素因数分解:

$3^3\times 7^1\times {\mathrm{6985439}}^1$

素因数の和:6985455

約数の個数: 16

約数和(自身を含む): 2235340800

約数和(自身を除く): 915092829

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 6985439, 20956317, 48898073, 62868951, 146694219, 188606853, 440082657, 1320247971]

約数ペア:

[(1, 1320247971), (3, 440082657), (7, 188606853), (9, 146694219), (21, 62868951), (27, 48898073), (63, 20956317), (189, 6985439)]