19802216

素因数分解:

$2^3\times 7^1\times {\mathrm{353611}}^1$

素因数の和:353624

約数の個数: 16

約数和(自身を含む): 42433440

約数和(自身を除く): 22631224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353611, 707222, 1414444, 2475277, 2828888, 4950554, 9901108, 19802216]

約数ペア:

[(1, 19802216), (2, 9901108), (4, 4950554), (7, 2828888), (8, 2475277), (14, 1414444), (28, 707222), (56, 353611)]