28576779

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 24507381

約数列:

[1, 3, 7, 11, 17, 19, 21, 33, 51, 57, 77, 119, 133, 187, 209, 231, 323, 357, 383, 399, 561, 627, 969, 1149, 1309, 1463, 2261, 2681, 3553, 3927, 4213, 4389, 6511, 6783, 7277, 8043, 10659, 12639, 19533, 21831, 24871, 29491, 45577, 50939, 71621, 74613, 80047, 88473, 123709, 136731, 152817, 214863, 240141, 371127, 501347, 560329, 865963, 1360799, 1504041, 1680987, 2597889, 4082397, 9525593, 28576779]

約数ペア:

[(1, 28576779), (3, 9525593), (7, 4082397), (11, 2597889), (17, 1680987), (19, 1504041), (21, 1360799), (33, 865963), (51, 560329), (57, 501347), (77, 371127), (119, 240141), (133, 214863), (187, 152817), (209, 136731), (231, 123709), (323, 88473), (357, 80047), (383, 74613), (399, 71621), (561, 50939), (627, 45577), (969, 29491), (1149, 24871), (1309, 21831), (1463, 19533), (2261, 12639), (2681, 10659), (3553, 8043), (3927, 7277), (4213, 6783), (4389, 6511)]