20405982

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{46589}}^1$

素因数の和:46667

約数の個数: 16

約数和(自身を含む): 41371920

約数和(自身を除く): 20965938

約数列:

[1, 2, 3, 6, 73, 146, 219, 438, 46589, 93178, 139767, 279534, 3400997, 6801994, 10202991, 20405982]

約数ペア:

[(1, 20405982), (2, 10202991), (3, 6801994), (6, 3400997), (73, 279534), (146, 139767), (219, 93178), (438, 46589)]