21929128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210857}}^1$

素因数の和:210876

約数の個数: 16

約数和(自身を含む): 44280180

約数和(自身を除く): 22351052

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210857, 421714, 843428, 1686856, 2741141, 5482282, 10964564, 21929128]

約数ペア:

[(1, 21929128), (2, 10964564), (4, 5482282), (8, 2741141), (13, 1686856), (26, 843428), (52, 421714), (104, 210857)]