21243392

素因数分解:

$2^9\times {\mathrm{41491}}^1$

素因数の和:41509

約数の個数: 20

約数和(自身を含む): 42446316

約数和(自身を除く): 21202924

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41491, 82982, 165964, 331928, 663856, 1327712, 2655424, 5310848, 10621696, 21243392]

約数ペア:

[(1, 21243392), (2, 10621696), (4, 5310848), (8, 2655424), (16, 1327712), (32, 663856), (64, 331928), (128, 165964), (256, 82982), (512, 41491)]