6891399

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{571}}^1$

素因数の和:732

約数の個数: 20

約数和(自身を含む): 10381800

約数和(自身を除く): 3490401

約数列:

[1, 3, 9, 27, 81, 149, 447, 571, 1341, 1713, 4023, 5139, 12069, 15417, 46251, 85079, 255237, 765711, 2297133, 6891399]

約数ペア:

[(1, 6891399), (3, 2297133), (9, 765711), (27, 255237), (81, 85079), (149, 46251), (447, 15417), (571, 12069), (1341, 5139), (1713, 4023)]