21107108

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{977}}^1$

素因数の和:1483

約数の個数: 24

約数和(自身を含む): 40418784

約数和(自身を除く): 19311676

約数列:

[1, 2, 4, 11, 22, 44, 491, 977, 982, 1954, 1964, 3908, 5401, 10747, 10802, 21494, 21604, 42988, 479707, 959414, 1918828, 5276777, 10553554, 21107108]

約数ペア:

[(1, 21107108), (2, 10553554), (4, 5276777), (11, 1918828), (22, 959414), (44, 479707), (491, 42988), (977, 21604), (982, 21494), (1954, 10802), (1964, 10747), (3908, 5401)]