21678004

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{2063}}^1$

素因数の和:2175

約数の個数: 24

約数和(自身を含む): 39529728

約数和(自身を除く): 17851724

約数列:

[1, 2, 4, 37, 71, 74, 142, 148, 284, 2063, 2627, 4126, 5254, 8252, 10508, 76331, 146473, 152662, 292946, 305324, 585892, 5419501, 10839002, 21678004]

約数ペア:

[(1, 21678004), (2, 10839002), (4, 5419501), (37, 585892), (71, 305324), (74, 292946), (142, 152662), (148, 146473), (284, 76331), (2063, 10508), (2627, 8252), (4126, 5254)]