161780906

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{189439}}^1$

素因数の和:189509

約数の個数: 16

約数和(自身を含む): 281886720

約数和(自身を除く): 120105814

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 189439, 378878, 1326073, 2652146, 11555779, 23111558, 80890453, 161780906]

約数ペア:

[(1, 161780906), (2, 80890453), (7, 23111558), (14, 11555779), (61, 2652146), (122, 1326073), (427, 378878), (854, 189439)]