20826856

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 40711680

約数和(自身を除く): 19884824

約数列:

[1, 2, 4, 8, 37, 71, 74, 142, 148, 284, 296, 568, 991, 1982, 2627, 3964, 5254, 7928, 10508, 21016, 36667, 70361, 73334, 140722, 146668, 281444, 293336, 562888, 2603357, 5206714, 10413428, 20826856]

約数ペア:

[(1, 20826856), (2, 10413428), (4, 5206714), (8, 2603357), (37, 562888), (71, 293336), (74, 281444), (142, 146668), (148, 140722), (284, 73334), (296, 70361), (568, 36667), (991, 21016), (1982, 10508), (2627, 7928), (3964, 5254)]