1639731667

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 1943339904

約数和(自身を除く): 303608237

約数列:

[1, 7, 61, 101, 193, 197, 427, 707, 1351, 1379, 6161, 11773, 12017, 19493, 19897, 38021, 43127, 82411, 84119, 136451, 139279, 266147, 1189073, 1213717, 2319281, 3840121, 8323511, 8496019, 16234967, 26880847, 234247381, 1639731667]

約数ペア:

[(1, 1639731667), (7, 234247381), (61, 26880847), (101, 16234967), (193, 8496019), (197, 8323511), (427, 3840121), (707, 2319281), (1351, 1213717), (1379, 1189073), (6161, 266147), (11773, 139279), (12017, 136451), (19493, 84119), (19897, 82411), (38021, 43127)]