21757100

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2243}}^1$

素因数の和:2354

約数の個数: 36

約数和(自身を含む): 47720904

約数和(自身を除く): 25963804

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2243, 2425, 4486, 4850, 8972, 9700, 11215, 22430, 44860, 56075, 112150, 217571, 224300, 435142, 870284, 1087855, 2175710, 4351420, 5439275, 10878550, 21757100]

約数ペア:

[(1, 21757100), (2, 10878550), (4, 5439275), (5, 4351420), (10, 2175710), (20, 1087855), (25, 870284), (50, 435142), (97, 224300), (100, 217571), (194, 112150), (388, 56075), (485, 44860), (970, 22430), (1940, 11215), (2243, 9700), (2425, 8972), (4486, 4850)]