21068967

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1335

約数の個数: 24

約数和(自身を含む): 31436800

約数和(自身を除く): 10367833

約数列:

[1, 3, 17, 19, 51, 57, 289, 323, 867, 969, 1279, 3837, 5491, 16473, 21743, 24301, 65229, 72903, 369631, 413117, 1108893, 1239351, 7022989, 21068967]

約数ペア:

[(1, 21068967), (3, 7022989), (17, 1239351), (19, 1108893), (51, 413117), (57, 369631), (289, 72903), (323, 65229), (867, 24301), (969, 21743), (1279, 16473), (3837, 5491)]