21443504

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{4049}}^1$

素因数の和:4388

約数の個数: 20

約数和(自身を含む): 41682600

約数和(自身を除く): 20239096

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 4049, 5296, 8098, 16196, 32392, 64784, 1340219, 2680438, 5360876, 10721752, 21443504]

約数ペア:

[(1, 21443504), (2, 10721752), (4, 5360876), (8, 2680438), (16, 1340219), (331, 64784), (662, 32392), (1324, 16196), (2648, 8098), (4049, 5296)]