217877517

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 393609216

約数和(自身を除く): 175731699

約数列:

[1, 3, 9, 11, 13, 31, 33, 39, 43, 93, 99, 117, 127, 129, 143, 279, 341, 381, 387, 403, 429, 473, 559, 1023, 1143, 1209, 1287, 1333, 1397, 1419, 1651, 1677, 3069, 3627, 3937, 3999, 4191, 4257, 4433, 4953, 5031, 5461, 6149, 11811, 11997, 12573, 13299, 14663, 14859, 16383, 17329, 18161, 18447, 35433, 39897, 43307, 43989, 49149, 51181, 51987, 54483, 55341, 60071, 70993, 129921, 131967, 153543, 155961, 163449, 169291, 180213, 190619, 212979, 389763, 460629, 507873, 540639, 562991, 571857, 638937, 780923, 1523619, 1688973, 1715571, 1862201, 2200783, 2342769, 5066919, 5586603, 6602349, 7028307, 16759809, 19807047, 24208613, 72625839, 217877517]

約数ペア:

[(1, 217877517), (3, 72625839), (9, 24208613), (11, 19807047), (13, 16759809), (31, 7028307), (33, 6602349), (39, 5586603), (43, 5066919), (93, 2342769), (99, 2200783), (117, 1862201), (127, 1715571), (129, 1688973), (143, 1523619), (279, 780923), (341, 638937), (381, 571857), (387, 562991), (403, 540639), (429, 507873), (473, 460629), (559, 389763), (1023, 212979), (1143, 190619), (1209, 180213), (1287, 169291), (1333, 163449), (1397, 155961), (1419, 153543), (1651, 131967), (1677, 129921), (3069, 70993), (3627, 60071), (3937, 55341), (3999, 54483), (4191, 51987), (4257, 51181), (4433, 49149), (4953, 43989), (5031, 43307), (5461, 39897), (6149, 35433), (11811, 18447), (11997, 18161), (12573, 17329), (13299, 16383), (14663, 14859)]