21273208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2347}}^1$

素因数の和:2467

約数の個数: 32

約数和(自身を含む): 43954560

約数和(自身を除く): 22681352

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 103, 206, 412, 824, 1133, 2266, 2347, 4532, 4694, 9064, 9388, 18776, 25817, 51634, 103268, 206536, 241741, 483482, 966964, 1933928, 2659151, 5318302, 10636604, 21273208]

約数ペア:

[(1, 21273208), (2, 10636604), (4, 5318302), (8, 2659151), (11, 1933928), (22, 966964), (44, 483482), (88, 241741), (103, 206536), (206, 103268), (412, 51634), (824, 25817), (1133, 18776), (2266, 9388), (2347, 9064), (4532, 4694)]