19905732

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 64576512

約数和(自身を除く): 44670780

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 43, 44, 63, 66, 77, 84, 86, 99, 126, 129, 132, 154, 167, 172, 198, 231, 252, 258, 301, 308, 334, 387, 396, 462, 473, 501, 516, 602, 668, 693, 774, 903, 924, 946, 1002, 1169, 1204, 1386, 1419, 1503, 1548, 1806, 1837, 1892, 2004, 2338, 2709, 2772, 2838, 3006, 3311, 3507, 3612, 3674, 4257, 4676, 5418, 5511, 5676, 6012, 6622, 7014, 7181, 7348, 8514, 9933, 10521, 10836, 11022, 12859, 13244, 14028, 14362, 16533, 17028, 19866, 21042, 21543, 22044, 25718, 28724, 29799, 33066, 38577, 39732, 42084, 43086, 50267, 51436, 59598, 64629, 66132, 77154, 78991, 86172, 100534, 115731, 119196, 129258, 150801, 154308, 157982, 201068, 231462, 236973, 258516, 301602, 315964, 452403, 462924, 473946, 552937, 603204, 710919, 904806, 947892, 1105874, 1421838, 1658811, 1809612, 2211748, 2843676, 3317622, 4976433, 6635244, 9952866, 19905732]

約数ペア:

[(1, 19905732), (2, 9952866), (3, 6635244), (4, 4976433), (6, 3317622), (7, 2843676), (9, 2211748), (11, 1809612), (12, 1658811), (14, 1421838), (18, 1105874), (21, 947892), (22, 904806), (28, 710919), (33, 603204), (36, 552937), (42, 473946), (43, 462924), (44, 452403), (63, 315964), (66, 301602), (77, 258516), (84, 236973), (86, 231462), (99, 201068), (126, 157982), (129, 154308), (132, 150801), (154, 129258), (167, 119196), (172, 115731), (198, 100534), (231, 86172), (252, 78991), (258, 77154), (301, 66132), (308, 64629), (334, 59598), (387, 51436), (396, 50267), (462, 43086), (473, 42084), (501, 39732), (516, 38577), (602, 33066), (668, 29799), (693, 28724), (774, 25718), (903, 22044), (924, 21543), (946, 21042), (1002, 19866), (1169, 17028), (1204, 16533), (1386, 14362), (1419, 14028), (1503, 13244), (1548, 12859), (1806, 11022), (1837, 10836), (1892, 10521), (2004, 9933), (2338, 8514), (2709, 7348), (2772, 7181), (2838, 7014), (3006, 6622), (3311, 6012), (3507, 5676), (3612, 5511), (3674, 5418), (4257, 4676)]