20295156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{787}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 54365696

約数和(自身を除く): 34070540

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 307, 614, 787, 921, 1228, 1574, 1842, 2149, 2361, 3148, 3684, 4298, 4722, 5509, 6447, 8596, 9444, 11018, 12894, 16527, 22036, 25788, 33054, 66108, 241609, 483218, 724827, 966436, 1449654, 1691263, 2899308, 3382526, 5073789, 6765052, 10147578, 20295156]

約数ペア:

[(1, 20295156), (2, 10147578), (3, 6765052), (4, 5073789), (6, 3382526), (7, 2899308), (12, 1691263), (14, 1449654), (21, 966436), (28, 724827), (42, 483218), (84, 241609), (307, 66108), (614, 33054), (787, 25788), (921, 22036), (1228, 16527), (1574, 12894), (1842, 11018), (2149, 9444), (2361, 8596), (3148, 6447), (3684, 5509), (4298, 4722)]