21296473

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 25456896

約数和(自身を除く): 4160423

約数列:

[1, 11, 19, 31, 173, 209, 341, 361, 589, 1903, 3287, 3971, 5363, 6479, 11191, 36157, 58993, 62453, 101897, 123101, 686983, 1120867, 1936043, 21296473]

約数ペア:

[(1, 21296473), (11, 1936043), (19, 1120867), (31, 686983), (173, 123101), (209, 101897), (341, 62453), (361, 58993), (589, 36157), (1903, 11191), (3287, 6479), (3971, 5363)]