21640982

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{677}}^1\times {\mathrm{1453}}^1$

素因数の和:2143

約数の個数: 16

約数和(自身を含む): 35489232

約数和(自身を除く): 13848250

約数列:

[1, 2, 11, 22, 677, 1354, 1453, 2906, 7447, 14894, 15983, 31966, 983681, 1967362, 10820491, 21640982]

約数ペア:

[(1, 21640982), (2, 10820491), (11, 1967362), (22, 983681), (677, 31966), (1354, 15983), (1453, 14894), (2906, 7447)]