213157945

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{42589}}^1$

素因数の和:42625

約数の個数: 32

約数和(自身を含む): 343445760

約数和(自身を除く): 130287815

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 5005, 42589, 212945, 298123, 468479, 553657, 1490615, 2342395, 2768285, 3279353, 3875599, 6090227, 16396765, 19377995, 30451135, 42631589, 213157945]

約数ペア:

[(1, 213157945), (5, 42631589), (7, 30451135), (11, 19377995), (13, 16396765), (35, 6090227), (55, 3875599), (65, 3279353), (77, 2768285), (91, 2342395), (143, 1490615), (385, 553657), (455, 468479), (715, 298123), (1001, 212945), (5005, 42589)]