21006906178

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{1229}}^1\times {\mathrm{120371}}^1$

素因数の和:121673

約数の個数: 16

約数和(自身を含む): 31980432960

約数和(自身を除く): 10973526782

約数列:

[1, 2, 71, 142, 1229, 2458, 87259, 120371, 174518, 240742, 8546341, 17092682, 147935959, 295871918, 10503453089, 21006906178]

約数ペア:

[(1, 21006906178), (2, 10503453089), (71, 295871918), (142, 147935959), (1229, 17092682), (2458, 8546341), (87259, 240742), (120371, 174518)]