21370288

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70297}}^1$

素因数の和:70324

約数の個数: 20

約数和(自身を含む): 43584760

約数和(自身を除く): 22214472

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70297, 140594, 281188, 562376, 1124752, 1335643, 2671286, 5342572, 10685144, 21370288]

約数ペア:

[(1, 21370288), (2, 10685144), (4, 5342572), (8, 2671286), (16, 1335643), (19, 1124752), (38, 562376), (76, 281188), (152, 140594), (304, 70297)]