205751985663

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{515669137}}^1$

素因数の和:515669166

約数の個数: 16

約数和(自身を含む): 330028248320

約数和(自身を除く): 124276262657

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 515669137, 1547007411, 3609683959, 9797713603, 10829051877, 29393140809, 68583995221, 205751985663]

約数ペア:

[(1, 205751985663), (3, 68583995221), (7, 29393140809), (19, 10829051877), (21, 9797713603), (57, 3609683959), (133, 1547007411), (399, 515669137)]