21761896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209249}}^1$

素因数の和:209268

約数の個数: 16

約数和(自身を含む): 43942500

約数和(自身を除く): 22180604

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209249, 418498, 836996, 1673992, 2720237, 5440474, 10880948, 21761896]

約数ペア:

[(1, 21761896), (2, 10880948), (4, 5440474), (8, 2720237), (13, 1673992), (26, 836996), (52, 418498), (104, 209249)]