209519982

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1709}}^1$

素因数の和:1870

約数の個数: 72

約数和(自身を含む): 532186200

約数和(自身を除く): 322666218

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 139, 147, 278, 294, 417, 441, 834, 882, 973, 1251, 1709, 1946, 2502, 2919, 3418, 5127, 5838, 6811, 8757, 10254, 11963, 13622, 15381, 17514, 20433, 23926, 30762, 35889, 40866, 61299, 71778, 83741, 107667, 122598, 167482, 215334, 237551, 251223, 475102, 502446, 712653, 753669, 1425306, 1507338, 1662857, 2137959, 3325714, 4275918, 4988571, 9977142, 11639999, 14965713, 23279998, 29931426, 34919997, 69839994, 104759991, 209519982]

約数ペア:

[(1, 209519982), (2, 104759991), (3, 69839994), (6, 34919997), (7, 29931426), (9, 23279998), (14, 14965713), (18, 11639999), (21, 9977142), (42, 4988571), (49, 4275918), (63, 3325714), (98, 2137959), (126, 1662857), (139, 1507338), (147, 1425306), (278, 753669), (294, 712653), (417, 502446), (441, 475102), (834, 251223), (882, 237551), (973, 215334), (1251, 167482), (1709, 122598), (1946, 107667), (2502, 83741), (2919, 71778), (3418, 61299), (5127, 40866), (5838, 35889), (6811, 30762), (8757, 23926), (10254, 20433), (11963, 17514), (13622, 15381)]