19895337

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1511}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 17844183

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1463, 1511, 1881, 4389, 4533, 10577, 13167, 13599, 16621, 28709, 31731, 49863, 86127, 95193, 116347, 149589, 200963, 258381, 315799, 349041, 602889, 947397, 1047123, 1808667, 2210593, 2842191, 6631779, 19895337]

約数ペア:

[(1, 19895337), (3, 6631779), (7, 2842191), (9, 2210593), (11, 1808667), (19, 1047123), (21, 947397), (33, 602889), (57, 349041), (63, 315799), (77, 258381), (99, 200963), (133, 149589), (171, 116347), (209, 95193), (231, 86127), (399, 49863), (627, 31731), (693, 28709), (1197, 16621), (1463, 13599), (1511, 13167), (1881, 10577), (4389, 4533)]