21395596

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6547}}^1$

素因数の和:6613

約数の個数: 24

約数和(自身を含む): 40335680

約数和(自身を除く): 18940084

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6547, 13094, 26188, 124393, 248786, 281521, 497572, 563042, 1126084, 5348899, 10697798, 21395596]

約数ペア:

[(1, 21395596), (2, 10697798), (4, 5348899), (19, 1126084), (38, 563042), (43, 497572), (76, 281521), (86, 248786), (172, 124393), (817, 26188), (1634, 13094), (3268, 6547)]