21866278840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{78093853}}^1$

素因数の和:78093871

約数の個数: 32

約数和(自身を含む): 56227574880

約数和(自身を除く): 34361296040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 78093853, 156187706, 312375412, 390469265, 546656971, 624750824, 780938530, 1093313942, 1561877060, 2186627884, 2733284855, 3123754120, 4373255768, 5466569710, 10933139420, 21866278840]

約数ペア:

[(1, 21866278840), (2, 10933139420), (4, 5466569710), (5, 4373255768), (7, 3123754120), (8, 2733284855), (10, 2186627884), (14, 1561877060), (20, 1093313942), (28, 780938530), (35, 624750824), (40, 546656971), (56, 390469265), (70, 312375412), (140, 156187706), (280, 78093853)]