21328986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{971}}^1$

素因数の和:1506

約数の個数: 32

約数和(自身を含む): 48895488

約数和(自身を除く): 27566502

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 523, 971, 1046, 1569, 1942, 2913, 3138, 3661, 5826, 6797, 7322, 10983, 13594, 20391, 21966, 40782, 507833, 1015666, 1523499, 3046998, 3554831, 7109662, 10664493, 21328986]

約数ペア:

[(1, 21328986), (2, 10664493), (3, 7109662), (6, 3554831), (7, 3046998), (14, 1523499), (21, 1015666), (42, 507833), (523, 40782), (971, 21966), (1046, 20391), (1569, 13594), (1942, 10983), (2913, 7322), (3138, 6797), (3661, 5826)]