21961340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57793}}^1$

素因数の和:57821

約数の個数: 24

約数和(自身を含む): 48546960

約数和(自身を除く): 26585620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 57793, 115586, 231172, 288965, 577930, 1098067, 1155860, 2196134, 4392268, 5490335, 10980670, 21961340]

約数ペア:

[(1, 21961340), (2, 10980670), (4, 5490335), (5, 4392268), (10, 2196134), (19, 1155860), (20, 1098067), (38, 577930), (76, 288965), (95, 231172), (190, 115586), (380, 57793)]