21209862

素因数分解:

$2^1\times 3^1\times {\mathrm{449}}^1\times {\mathrm{7873}}^1$

素因数の和:8327

約数の個数: 16

約数和(自身を含む): 42519600

約数和(自身を除く): 21309738

約数列:

[1, 2, 3, 6, 449, 898, 1347, 2694, 7873, 15746, 23619, 47238, 3534977, 7069954, 10604931, 21209862]

約数ペア:

[(1, 21209862), (2, 10604931), (3, 7069954), (6, 3534977), (449, 47238), (898, 23619), (1347, 15746), (2694, 7873)]