1891492561

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 2363969664

約数和(自身を除く): 472477103

約数列:

[1, 7, 23, 49, 73, 83, 161, 277, 511, 581, 1127, 1679, 1909, 1939, 3577, 4067, 6059, 6371, 11753, 13363, 13573, 20221, 22991, 42413, 44597, 82271, 93541, 139357, 141547, 160937, 296891, 312179, 465083, 528793, 975499, 990829, 1126559, 1678343, 3255581, 3701551, 6828493, 11748401, 22789067, 25910857, 38601889, 82238807, 270213223, 1891492561]

約数ペア:

[(1, 1891492561), (7, 270213223), (23, 82238807), (49, 38601889), (73, 25910857), (83, 22789067), (161, 11748401), (277, 6828493), (511, 3701551), (581, 3255581), (1127, 1678343), (1679, 1126559), (1909, 990829), (1939, 975499), (3577, 528793), (4067, 465083), (6059, 312179), (6371, 296891), (11753, 160937), (13363, 141547), (13573, 139357), (20221, 93541), (22991, 82271), (42413, 44597)]