21243918

素因数分解:

$2^1\times 3^1\times {\mathrm{673}}^1\times {\mathrm{5261}}^1$

素因数の和:5939

約数の個数: 16

約数和(自身を含む): 42559056

約数和(自身を除く): 21315138

約数列:

[1, 2, 3, 6, 673, 1346, 2019, 4038, 5261, 10522, 15783, 31566, 3540653, 7081306, 10621959, 21243918]

約数ペア:

[(1, 21243918), (2, 10621959), (3, 7081306), (6, 3540653), (673, 31566), (1346, 15783), (2019, 10522), (4038, 5261)]