20154671999

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 26015668224

約数和(自身を除く): 5860996225

約数列:

[1, 7, 11, 61, 77, 151, 157, 181, 427, 671, 1057, 1099, 1267, 1661, 1727, 1991, 4697, 9211, 9577, 11041, 11627, 12089, 13937, 23707, 27331, 28417, 64477, 67039, 77287, 101321, 105347, 121451, 165949, 191317, 198919, 260777, 300641, 312587, 709247, 737429, 850157, 1446127, 1667191, 1733437, 1825439, 2104487, 2188109, 4290967, 10122889, 11670337, 12134059, 15907397, 18339101, 19067807, 30036769, 47200637, 111351779, 128373707, 133474649, 261748987, 330404459, 1832242909, 2879238857, 20154671999]

約数ペア:

[(1, 20154671999), (7, 2879238857), (11, 1832242909), (61, 330404459), (77, 261748987), (151, 133474649), (157, 128373707), (181, 111351779), (427, 47200637), (671, 30036769), (1057, 19067807), (1099, 18339101), (1267, 15907397), (1661, 12134059), (1727, 11670337), (1991, 10122889), (4697, 4290967), (9211, 2188109), (9577, 2104487), (11041, 1825439), (11627, 1733437), (12089, 1667191), (13937, 1446127), (23707, 850157), (27331, 737429), (28417, 709247), (64477, 312587), (67039, 300641), (77287, 260777), (101321, 198919), (105347, 191317), (121451, 165949)]