21341637

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{7121}}^1$

素因数の和:7170

約数の個数: 20

約数和(自身を含む): 32746956

約数和(自身を除く): 11405319

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 7121, 21363, 64089, 192267, 263477, 576801, 790431, 2371293, 7113879, 21341637]

約数ペア:

[(1, 21341637), (3, 7113879), (9, 2371293), (27, 790431), (37, 576801), (81, 263477), (111, 192267), (333, 64089), (999, 21363), (2997, 7121)]