19175541

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 35665920

約数和(自身を除く): 16490379

約数列:

[1, 3, 7, 11, 17, 19, 21, 33, 51, 57, 77, 119, 133, 187, 209, 231, 257, 323, 357, 399, 561, 627, 771, 969, 1309, 1463, 1799, 2261, 2827, 3553, 3927, 4369, 4389, 4883, 5397, 6783, 8481, 10659, 13107, 14649, 19789, 24871, 30583, 34181, 48059, 53713, 59367, 74613, 83011, 91749, 102543, 144177, 161139, 249033, 336413, 375991, 581077, 913121, 1009239, 1127973, 1743231, 2739363, 6391847, 19175541]

約数ペア:

[(1, 19175541), (3, 6391847), (7, 2739363), (11, 1743231), (17, 1127973), (19, 1009239), (21, 913121), (33, 581077), (51, 375991), (57, 336413), (77, 249033), (119, 161139), (133, 144177), (187, 102543), (209, 91749), (231, 83011), (257, 74613), (323, 59367), (357, 53713), (399, 48059), (561, 34181), (627, 30583), (771, 24871), (969, 19789), (1309, 14649), (1463, 13107), (1799, 10659), (2261, 8481), (2827, 6783), (3553, 5397), (3927, 4883), (4369, 4389)]