20992930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{601}}^1$

素因数の和:1114

約数の個数: 32

約数和(自身を含む): 43344000

約数和(自身を除く): 22351070

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 499, 601, 998, 1202, 2495, 3005, 3493, 4207, 4990, 6010, 6986, 8414, 17465, 21035, 34930, 42070, 299899, 599798, 1499495, 2099293, 2998990, 4198586, 10496465, 20992930]

約数ペア:

[(1, 20992930), (2, 10496465), (5, 4198586), (7, 2998990), (10, 2099293), (14, 1499495), (35, 599798), (70, 299899), (499, 42070), (601, 34930), (998, 21035), (1202, 17465), (2495, 8414), (3005, 6986), (3493, 6010), (4207, 4990)]