21099764

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{8467}}^1$

素因数の和:8567

約数の個数: 24

約数和(自身を含む): 42678720

約数和(自身を除く): 21578956

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 8467, 16934, 33868, 59269, 118538, 237076, 753563, 1507126, 3014252, 5274941, 10549882, 21099764]

約数ペア:

[(1, 21099764), (2, 10549882), (4, 5274941), (7, 3014252), (14, 1507126), (28, 753563), (89, 237076), (178, 118538), (356, 59269), (623, 33868), (1246, 16934), (2492, 8467)]