18703839

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 32503680

約数和(自身を除く): 13799841

約数列:

[1, 3, 7, 11, 21, 33, 43, 49, 77, 129, 147, 231, 269, 301, 473, 539, 807, 903, 1419, 1617, 1883, 2107, 2959, 3311, 5649, 6321, 8877, 9933, 11567, 13181, 20713, 23177, 34701, 39543, 62139, 69531, 80969, 127237, 144991, 242907, 381711, 434973, 566783, 890659, 1700349, 2671977, 6234613, 18703839]

約数ペア:

[(1, 18703839), (3, 6234613), (7, 2671977), (11, 1700349), (21, 890659), (33, 566783), (43, 434973), (49, 381711), (77, 242907), (129, 144991), (147, 127237), (231, 80969), (269, 69531), (301, 62139), (473, 39543), (539, 34701), (807, 23177), (903, 20713), (1419, 13181), (1617, 11567), (1883, 9933), (2107, 8877), (2959, 6321), (3311, 5649)]