20719356

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 56843136

約数和(自身を除く): 36123780

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 167, 196, 211, 294, 334, 422, 501, 588, 633, 668, 844, 1002, 1169, 1266, 1477, 2004, 2338, 2532, 2954, 3507, 4431, 4676, 5908, 7014, 8183, 8862, 10339, 14028, 16366, 17724, 20678, 24549, 31017, 32732, 35237, 41356, 49098, 62034, 70474, 98196, 105711, 124068, 140948, 211422, 246659, 422844, 493318, 739977, 986636, 1479954, 1726613, 2959908, 3453226, 5179839, 6906452, 10359678, 20719356]

約数ペア:

[(1, 20719356), (2, 10359678), (3, 6906452), (4, 5179839), (6, 3453226), (7, 2959908), (12, 1726613), (14, 1479954), (21, 986636), (28, 739977), (42, 493318), (49, 422844), (84, 246659), (98, 211422), (147, 140948), (167, 124068), (196, 105711), (211, 98196), (294, 70474), (334, 62034), (422, 49098), (501, 41356), (588, 35237), (633, 32732), (668, 31017), (844, 24549), (1002, 20678), (1169, 17724), (1266, 16366), (1477, 14028), (2004, 10339), (2338, 8862), (2532, 8183), (2954, 7014), (3507, 5908), (4431, 4676)]