20986994

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{9311}}^1$

素因数の和:9350

約数の個数: 24

約数和(自身を含む): 38216448

約数和(自身を除く): 17229454

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 1127, 2254, 9311, 18622, 65177, 130354, 214153, 428306, 456239, 912478, 1499071, 2998142, 10493497, 20986994]

約数ペア:

[(1, 20986994), (2, 10493497), (7, 2998142), (14, 1499071), (23, 912478), (46, 456239), (49, 428306), (98, 214153), (161, 130354), (322, 65177), (1127, 18622), (2254, 9311)]