21237441

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{887}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 29666304

約数和(自身を除く): 8428863

約数列:

[1, 3, 23, 69, 347, 887, 1041, 2661, 7981, 20401, 23943, 61203, 307789, 923367, 7079147, 21237441]

約数ペア:

[(1, 21237441), (3, 7079147), (23, 923367), (69, 307789), (347, 61203), (887, 23943), (1041, 20401), (2661, 7981)]