21869560

素因数分解:

$2^3\times 5^1\times {\mathrm{546739}}^1$

素因数の和:546750

約数の個数: 16

約数和(自身を含む): 49206600

約数和(自身を除く): 27337040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 546739, 1093478, 2186956, 2733695, 4373912, 5467390, 10934780, 21869560]

約数ペア:

[(1, 21869560), (2, 10934780), (4, 5467390), (5, 4373912), (8, 2733695), (10, 2186956), (20, 1093478), (40, 546739)]