165886511

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 217128960

約数和(自身を除く): 51242449

約数列:

[1, 7, 19, 23, 49, 61, 127, 133, 161, 427, 437, 889, 931, 1127, 1159, 1403, 2413, 2921, 2989, 3059, 6223, 7747, 8113, 9821, 16891, 20447, 21413, 26657, 54229, 55499, 56791, 68747, 118237, 143129, 147193, 178181, 186599, 379603, 388493, 1030351, 1247267, 1306193, 2719451, 3385439, 7212457, 8730869, 23698073, 165886511]

約数ペア:

[(1, 165886511), (7, 23698073), (19, 8730869), (23, 7212457), (49, 3385439), (61, 2719451), (127, 1306193), (133, 1247267), (161, 1030351), (427, 388493), (437, 379603), (889, 186599), (931, 178181), (1127, 147193), (1159, 143129), (1403, 118237), (2413, 68747), (2921, 56791), (2989, 55499), (3059, 54229), (6223, 26657), (7747, 21413), (8113, 20447), (9821, 16891)]