21869360

素因数分解:

$2^4\times 5^1\times {\mathrm{273367}}^1$

素因数の和:273380

約数の個数: 20

約数和(自身を含む): 50846448

約数和(自身を除く): 28977088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273367, 546734, 1093468, 1366835, 2186936, 2733670, 4373872, 5467340, 10934680, 21869360]

約数ペア:

[(1, 21869360), (2, 10934680), (4, 5467340), (5, 4373872), (8, 2733670), (10, 2186936), (16, 1366835), (20, 1093468), (40, 546734), (80, 273367)]