21423952

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121727}}^1$

素因数の和:121746

約数の個数: 20

約数和(自身を含む): 45282816

約数和(自身を除く): 23858864

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121727, 243454, 486908, 973816, 1338997, 1947632, 2677994, 5355988, 10711976, 21423952]

約数ペア:

[(1, 21423952), (2, 10711976), (4, 5355988), (8, 2677994), (11, 1947632), (16, 1338997), (22, 973816), (44, 486908), (88, 243454), (176, 121727)]