21870506

素因数分解:

$2^1\times 7^1\times {\mathrm{809}}^1\times {\mathrm{1931}}^1$

素因数の和:2749

約数の個数: 16

約数和(自身を含む): 37558080

約数和(自身を除く): 15687574

約数列:

[1, 2, 7, 14, 809, 1618, 1931, 3862, 5663, 11326, 13517, 27034, 1562179, 3124358, 10935253, 21870506]

約数ペア:

[(1, 21870506), (2, 10935253), (7, 3124358), (14, 1562179), (809, 27034), (1618, 13517), (1931, 11326), (3862, 5663)]