21684404

素因数分解:

$2^2\times 7^1\times {\mathrm{823}}^1\times {\mathrm{941}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 43467648

約数和(自身を除く): 21783244

約数列:

[1, 2, 4, 7, 14, 28, 823, 941, 1646, 1882, 3292, 3764, 5761, 6587, 11522, 13174, 23044, 26348, 774443, 1548886, 3097772, 5421101, 10842202, 21684404]

約数ペア:

[(1, 21684404), (2, 10842202), (4, 5421101), (7, 3097772), (14, 1548886), (28, 774443), (823, 26348), (941, 23044), (1646, 13174), (1882, 11522), (3292, 6587), (3764, 5761)]