21317373

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 40435200

約数和(自身を除く): 19117827

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1463, 1619, 1881, 4389, 4857, 11333, 13167, 14571, 17809, 30761, 33999, 53427, 92283, 101997, 124663, 160281, 215327, 276849, 338371, 373989, 645981, 1015113, 1121967, 1937943, 2368597, 3045339, 7105791, 21317373]

約数ペア:

[(1, 21317373), (3, 7105791), (7, 3045339), (9, 2368597), (11, 1937943), (19, 1121967), (21, 1015113), (33, 645981), (57, 373989), (63, 338371), (77, 276849), (99, 215327), (133, 160281), (171, 124663), (209, 101997), (231, 92283), (399, 53427), (627, 33999), (693, 30761), (1197, 17809), (1463, 14571), (1619, 13167), (1881, 11333), (4389, 4857)]