207922921

素因数分解:

${\mathrm{23}}^2\times {\mathrm{31}}^2\times {\mathrm{409}}^1$

素因数の和:517

約数の個数: 18

約数和(自身を含む): 225142890

約数和(自身を除く): 17219969

約数列:

[1, 23, 31, 409, 529, 713, 961, 9407, 12679, 16399, 22103, 216361, 291617, 393049, 508369, 6707191, 9040127, 207922921]

約数ペア:

[(1, 207922921), (23, 9040127), (31, 6707191), (409, 508369), (529, 393049), (713, 291617), (961, 216361), (9407, 22103), (12679, 16399)]