18741429

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 16740171

約数列:

[1, 3, 7, 9, 17, 19, 21, 27, 51, 57, 63, 119, 133, 153, 171, 189, 307, 323, 357, 399, 459, 513, 921, 969, 1071, 1197, 2149, 2261, 2763, 2907, 3213, 3591, 5219, 5833, 6447, 6783, 8289, 8721, 15657, 17499, 19341, 20349, 36533, 40831, 46971, 52497, 58023, 61047, 99161, 109599, 122493, 140913, 157491, 297483, 328797, 367479, 694127, 892449, 986391, 1102437, 2082381, 2677347, 6247143, 18741429]

約数ペア:

[(1, 18741429), (3, 6247143), (7, 2677347), (9, 2082381), (17, 1102437), (19, 986391), (21, 892449), (27, 694127), (51, 367479), (57, 328797), (63, 297483), (119, 157491), (133, 140913), (153, 122493), (171, 109599), (189, 99161), (307, 61047), (323, 58023), (357, 52497), (399, 46971), (459, 40831), (513, 36533), (921, 20349), (969, 19341), (1071, 17499), (1197, 15657), (2149, 8721), (2261, 8289), (2763, 6783), (2907, 6447), (3213, 5833), (3591, 5219)]