19522503

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 38342304

約数和(自身を除く): 18819801

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 121, 143, 197, 231, 273, 363, 429, 591, 693, 819, 847, 1001, 1089, 1287, 1379, 1573, 1773, 2167, 2541, 2561, 3003, 4137, 4719, 6501, 7623, 7683, 9009, 11011, 12411, 14157, 15169, 17927, 19503, 23049, 23837, 28171, 33033, 45507, 53781, 71511, 84513, 99099, 136521, 161343, 166859, 197197, 214533, 253539, 309881, 500577, 591591, 929643, 1501731, 1774773, 2169167, 2788929, 6507501, 19522503]

約数ペア:

[(1, 19522503), (3, 6507501), (7, 2788929), (9, 2169167), (11, 1774773), (13, 1501731), (21, 929643), (33, 591591), (39, 500577), (63, 309881), (77, 253539), (91, 214533), (99, 197197), (117, 166859), (121, 161343), (143, 136521), (197, 99099), (231, 84513), (273, 71511), (363, 53781), (429, 45507), (591, 33033), (693, 28171), (819, 23837), (847, 23049), (1001, 19503), (1089, 17927), (1287, 15169), (1379, 14157), (1573, 12411), (1773, 11011), (2167, 9009), (2541, 7683), (2561, 7623), (3003, 6501), (4137, 4719)]