31380153

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 54067200

約数和(自身を除く): 22687047

約数列:

[1, 3, 7, 19, 21, 31, 43, 57, 59, 93, 129, 133, 177, 217, 301, 399, 413, 589, 651, 817, 903, 1121, 1239, 1333, 1767, 1829, 2451, 2537, 3363, 3999, 4123, 5487, 5719, 7611, 7847, 9331, 12369, 12803, 17157, 17759, 23541, 25327, 27993, 34751, 38409, 48203, 53277, 75981, 78647, 104253, 144609, 177289, 235941, 243257, 337421, 531867, 550529, 729771, 1012263, 1494293, 1651587, 4482879, 10460051, 31380153]

約数ペア:

[(1, 31380153), (3, 10460051), (7, 4482879), (19, 1651587), (21, 1494293), (31, 1012263), (43, 729771), (57, 550529), (59, 531867), (93, 337421), (129, 243257), (133, 235941), (177, 177289), (217, 144609), (301, 104253), (399, 78647), (413, 75981), (589, 53277), (651, 48203), (817, 38409), (903, 34751), (1121, 27993), (1239, 25327), (1333, 23541), (1767, 17759), (1829, 17157), (2451, 12803), (2537, 12369), (3363, 9331), (3999, 7847), (4123, 7611), (5487, 5719)]