647361

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 1100736

約数和(自身を除く): 453375

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 503, 1287, 1509, 4527, 5533, 6539, 16599, 19617, 49797, 58851, 71929, 215787, 647361]

約数ペア:

[(1, 647361), (3, 215787), (9, 71929), (11, 58851), (13, 49797), (33, 19617), (39, 16599), (99, 6539), (117, 5533), (143, 4527), (429, 1509), (503, 1287)]