21000332157

素因数分解:

$3^1\times 7^1\times {\mathrm{2531}}^1\times {\mathrm{395107}}^1$

素因数の和:397648

約数の個数: 16

約数和(自身を含む): 32013230592

約数和(自身を除く): 11012898435

約数列:

[1, 3, 7, 21, 2531, 7593, 17717, 53151, 395107, 1185321, 2765749, 8297247, 1000015817, 3000047451, 7000110719, 21000332157]

約数ペア:

[(1, 21000332157), (3, 7000110719), (7, 3000047451), (21, 1000015817), (2531, 8297247), (7593, 2765749), (17717, 1185321), (53151, 395107)]