21369864

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12541}}^1$

素因数の和:12621

約数の個数: 32

約数和(自身を含む): 54181440

約数和(自身を除く): 32811576

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12541, 25082, 37623, 50164, 75246, 100328, 150492, 300984, 890411, 1780822, 2671233, 3561644, 5342466, 7123288, 10684932, 21369864]

約数ペア:

[(1, 21369864), (2, 10684932), (3, 7123288), (4, 5342466), (6, 3561644), (8, 2671233), (12, 1780822), (24, 890411), (71, 300984), (142, 150492), (213, 100328), (284, 75246), (426, 50164), (568, 37623), (852, 25082), (1704, 12541)]