21970384

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72271}}^1$

素因数の和:72298

約数の個数: 20

約数和(自身を含む): 44808640

約数和(自身を除く): 22838256

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72271, 144542, 289084, 578168, 1156336, 1373149, 2746298, 5492596, 10985192, 21970384]

約数ペア:

[(1, 21970384), (2, 10985192), (4, 5492596), (8, 2746298), (16, 1373149), (19, 1156336), (38, 578168), (76, 289084), (152, 144542), (304, 72271)]