21879508

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2239}}^1$

素因数の和:2599

約数の個数: 24

約数和(自身を含む): 43904000

約数和(自身を除く): 22024492

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 1396, 2239, 2443, 4478, 4886, 8956, 9772, 15673, 31346, 62692, 781411, 1562822, 3125644, 5469877, 10939754, 21879508]

約数ペア:

[(1, 21879508), (2, 10939754), (4, 5469877), (7, 3125644), (14, 1562822), (28, 781411), (349, 62692), (698, 31346), (1396, 15673), (2239, 9772), (2443, 8956), (4478, 4886)]