21000901316

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{439}}^1\times {\mathrm{118411}}^1$

素因数の和:118955

約数の個数: 24

約数和(自身を含む): 37200313920

約数和(自身を除く): 16199412604

約数列:

[1, 2, 4, 101, 202, 404, 439, 878, 1756, 44339, 88678, 118411, 177356, 236822, 473644, 11959511, 23919022, 47838044, 51982429, 103964858, 207929716, 5250225329, 10500450658, 21000901316]

約数ペア:

[(1, 21000901316), (2, 10500450658), (4, 5250225329), (101, 207929716), (202, 103964858), (404, 51982429), (439, 47838044), (878, 23919022), (1756, 11959511), (44339, 473644), (88678, 236822), (118411, 177356)]