128392719

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{470303}}^1$

素因数の和:470326

約数の個数: 16

約数和(自身を含む): 210696192

約数和(自身を除く): 82303473

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 470303, 1410909, 3292121, 6113939, 9876363, 18341817, 42797573, 128392719]

約数ペア:

[(1, 128392719), (3, 42797573), (7, 18341817), (13, 9876363), (21, 6113939), (39, 3292121), (91, 1410909), (273, 470303)]