21104485144

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{138845297}}^1$

素因数の和:138845322

約数の個数: 16

約数和(自身を含む): 41653589400

約数和(自身を除く): 20549104256

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 138845297, 277690594, 555381188, 1110762376, 2638060643, 5276121286, 10552242572, 21104485144]

約数ペア:

[(1, 21104485144), (2, 10552242572), (4, 5276121286), (8, 2638060643), (19, 1110762376), (38, 555381188), (76, 277690594), (152, 138845297)]