208020857

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 251942400

約数和(自身を除く): 43921543

約数列:

[1, 11, 17, 29, 89, 187, 319, 431, 493, 979, 1513, 2581, 4741, 5423, 7327, 12499, 16643, 28391, 38359, 43877, 80597, 137489, 212483, 421949, 482647, 652103, 1112411, 2337313, 7173133, 12236521, 18910987, 208020857]

約数ペア:

[(1, 208020857), (11, 18910987), (17, 12236521), (29, 7173133), (89, 2337313), (187, 1112411), (319, 652103), (431, 482647), (493, 421949), (979, 212483), (1513, 137489), (2581, 80597), (4741, 43877), (5423, 38359), (7327, 28391), (12499, 16643)]