28825489

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 40818816

約数和(自身を除く): 11993327

約数列:

[1, 7, 11, 17, 19, 61, 77, 119, 133, 187, 209, 323, 361, 427, 671, 1037, 1159, 1309, 1463, 2261, 2527, 3553, 3971, 4697, 6137, 7259, 8113, 11407, 12749, 19703, 22021, 24871, 27797, 42959, 67507, 79849, 89243, 137921, 154147, 216733, 242231, 374357, 472549, 1517131, 1695617, 2620499, 4117927, 28825489]

約数ペア:

[(1, 28825489), (7, 4117927), (11, 2620499), (17, 1695617), (19, 1517131), (61, 472549), (77, 374357), (119, 242231), (133, 216733), (187, 154147), (209, 137921), (323, 89243), (361, 79849), (427, 67507), (671, 42959), (1037, 27797), (1159, 24871), (1309, 22021), (1463, 19703), (2261, 12749), (2527, 11407), (3553, 8113), (3971, 7259), (4697, 6137)]