21267248

素因数分解:

$2^4\times {\mathrm{659}}^1\times {\mathrm{2017}}^1$

素因数の和:2684

約数の個数: 20

約数和(自身を含む): 41288280

約数和(自身を除く): 20021032

約数列:

[1, 2, 4, 8, 16, 659, 1318, 2017, 2636, 4034, 5272, 8068, 10544, 16136, 32272, 1329203, 2658406, 5316812, 10633624, 21267248]

約数ペア:

[(1, 21267248), (2, 10633624), (4, 5316812), (8, 2658406), (16, 1329203), (659, 32272), (1318, 16136), (2017, 10544), (2636, 8068), (4034, 5272)]