7940187

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{1607}}^1$

素因数の和:1680

約数の個数: 20

約数和(自身を含む): 12063216

約数和(自身を除く): 4123029

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1607, 1647, 4821, 4941, 14463, 43389, 98027, 130167, 294081, 882243, 2646729, 7940187]

約数ペア:

[(1, 7940187), (3, 2646729), (9, 882243), (27, 294081), (61, 130167), (81, 98027), (183, 43389), (549, 14463), (1607, 4941), (1647, 4821)]