21240670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10163}}^1$

素因数の和:10200

約数の個数: 32

約数和(自身を含む): 43908480

約数和(自身を除く): 22667810

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10163, 20326, 50815, 101630, 111793, 193097, 223586, 386194, 558965, 965485, 1117930, 1930970, 2124067, 4248134, 10620335, 21240670]

約数ペア:

[(1, 21240670), (2, 10620335), (5, 4248134), (10, 2124067), (11, 1930970), (19, 1117930), (22, 965485), (38, 558965), (55, 386194), (95, 223586), (110, 193097), (190, 111793), (209, 101630), (418, 50815), (1045, 20326), (2090, 10163)]