648229959

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{205201}}^1$

素因数の和:205229

約数の個数: 24

約数和(自身を含む): 1045709392

約数和(自身を除く): 397479433

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 205201, 615603, 1846809, 2667613, 5540427, 8002839, 16621281, 24008517, 49863843, 72025551, 216076653, 648229959]

約数ペア:

[(1, 648229959), (3, 216076653), (9, 72025551), (13, 49863843), (27, 24008517), (39, 16621281), (81, 8002839), (117, 5540427), (243, 2667613), (351, 1846809), (1053, 615603), (3159, 205201)]