19514691

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 36812880

約数和(自身を除く): 17298189

約数列:

[1, 3, 7, 9, 17, 19, 21, 49, 51, 57, 63, 119, 133, 137, 147, 153, 171, 323, 357, 399, 411, 441, 833, 931, 959, 969, 1071, 1197, 1233, 2261, 2329, 2499, 2603, 2793, 2877, 2907, 6713, 6783, 6987, 7497, 7809, 8379, 8631, 15827, 16303, 18221, 20139, 20349, 20961, 23427, 44251, 47481, 48909, 54663, 60417, 114121, 127547, 132753, 142443, 146727, 163989, 309757, 342363, 382641, 398259, 929271, 1027089, 1147923, 2168299, 2787813, 6504897, 19514691]

約数ペア:

[(1, 19514691), (3, 6504897), (7, 2787813), (9, 2168299), (17, 1147923), (19, 1027089), (21, 929271), (49, 398259), (51, 382641), (57, 342363), (63, 309757), (119, 163989), (133, 146727), (137, 142443), (147, 132753), (153, 127547), (171, 114121), (323, 60417), (357, 54663), (399, 48909), (411, 47481), (441, 44251), (833, 23427), (931, 20961), (959, 20349), (969, 20139), (1071, 18221), (1197, 16303), (1233, 15827), (2261, 8631), (2329, 8379), (2499, 7809), (2603, 7497), (2793, 6987), (2877, 6783), (2907, 6713)]