18842901

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 32744448

約数和(自身を除く): 13901547

約数列:

[1, 3, 7, 11, 21, 33, 43, 49, 77, 129, 147, 231, 271, 301, 473, 539, 813, 903, 1419, 1617, 1897, 2107, 2981, 3311, 5691, 6321, 8943, 9933, 11653, 13279, 20867, 23177, 34959, 39837, 62601, 69531, 81571, 128183, 146069, 244713, 384549, 438207, 570997, 897281, 1712991, 2691843, 6280967, 18842901]

約数ペア:

[(1, 18842901), (3, 6280967), (7, 2691843), (11, 1712991), (21, 897281), (33, 570997), (43, 438207), (49, 384549), (77, 244713), (129, 146069), (147, 128183), (231, 81571), (271, 69531), (301, 62601), (473, 39837), (539, 34959), (813, 23177), (903, 20867), (1419, 13279), (1617, 11653), (1897, 9933), (2107, 8943), (2981, 6321), (3311, 5691)]