20954418

素因数分解:

$2^1\times 3^1\times {\mathrm{223}}^1\times {\mathrm{15661}}^1$

素因数の和:15889

約数の個数: 16

約数和(自身を含む): 42099456

約数和(自身を除く): 21145038

約数列:

[1, 2, 3, 6, 223, 446, 669, 1338, 15661, 31322, 46983, 93966, 3492403, 6984806, 10477209, 20954418]

約数ペア:

[(1, 20954418), (2, 10477209), (3, 6984806), (6, 3492403), (223, 93966), (446, 46983), (669, 31322), (1338, 15661)]