13821381

素因数分解:

$3^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 24660480

約数和(自身を除く): 10839099

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 93, 147, 189, 217, 279, 337, 441, 651, 837, 1011, 1323, 1519, 1953, 2359, 3033, 4557, 5859, 7077, 9099, 10447, 13671, 16513, 21231, 31341, 41013, 49539, 63693, 73129, 94023, 148617, 219387, 282069, 445851, 511903, 658161, 1535709, 1974483, 4607127, 13821381]

約数ペア:

[(1, 13821381), (3, 4607127), (7, 1974483), (9, 1535709), (21, 658161), (27, 511903), (31, 445851), (49, 282069), (63, 219387), (93, 148617), (147, 94023), (189, 73129), (217, 63693), (279, 49539), (337, 41013), (441, 31341), (651, 21231), (837, 16513), (1011, 13671), (1323, 10447), (1519, 9099), (1953, 7077), (2359, 5859), (3033, 4557)]