21068912

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21587}}^1$

素因数の和:21656

約数の個数: 20

約数和(自身を含む): 41492136

約数和(自身を除く): 20423224

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21587, 43174, 86348, 172696, 345392, 1316807, 2633614, 5267228, 10534456, 21068912]

約数ペア:

[(1, 21068912), (2, 10534456), (4, 5267228), (8, 2633614), (16, 1316807), (61, 345392), (122, 172696), (244, 86348), (488, 43174), (976, 21587)]