21804970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10433}}^1$

素因数の和:10470

約数の個数: 32

約数和(自身を含む): 45074880

約数和(自身を除く): 23269910

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10433, 20866, 52165, 104330, 114763, 198227, 229526, 396454, 573815, 991135, 1147630, 1982270, 2180497, 4360994, 10902485, 21804970]

約数ペア:

[(1, 21804970), (2, 10902485), (5, 4360994), (10, 2180497), (11, 1982270), (19, 1147630), (22, 991135), (38, 573815), (55, 396454), (95, 229526), (110, 198227), (190, 114763), (209, 104330), (418, 52165), (1045, 20866), (2090, 10433)]