19902498

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1873}}^1$

素因数の和:1919

約数の個数: 64

約数和(自身を含む): 51812352

約数和(自身を除く): 31909854

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 23, 33, 42, 46, 66, 69, 77, 138, 154, 161, 231, 253, 322, 462, 483, 506, 759, 966, 1518, 1771, 1873, 3542, 3746, 5313, 5619, 10626, 11238, 13111, 20603, 26222, 39333, 41206, 43079, 61809, 78666, 86158, 123618, 129237, 144221, 258474, 288442, 301553, 432663, 473869, 603106, 865326, 904659, 947738, 1421607, 1809318, 2843214, 3317083, 6634166, 9951249, 19902498]

約数ペア:

[(1, 19902498), (2, 9951249), (3, 6634166), (6, 3317083), (7, 2843214), (11, 1809318), (14, 1421607), (21, 947738), (22, 904659), (23, 865326), (33, 603106), (42, 473869), (46, 432663), (66, 301553), (69, 288442), (77, 258474), (138, 144221), (154, 129237), (161, 123618), (231, 86158), (253, 78666), (322, 61809), (462, 43079), (483, 41206), (506, 39333), (759, 26222), (966, 20603), (1518, 13111), (1771, 11238), (1873, 10626), (3542, 5619), (3746, 5313)]