20996858666

素因数分解:

$2^1\times 7^1\times {\mathrm{4421}}^1\times {\mathrm{339239}}^1$

素因数の和:343669

約数の個数: 16

約数和(自身を含む): 36002862720

約数和(自身を除く): 15006004054

約数列:

[1, 2, 7, 14, 4421, 8842, 30947, 61894, 339239, 678478, 2374673, 4749346, 1499775619, 2999551238, 10498429333, 20996858666]

約数ペア:

[(1, 20996858666), (2, 10498429333), (7, 2999551238), (14, 1499775619), (4421, 4749346), (8842, 2374673), (30947, 678478), (61894, 339239)]