7889720188

素因数分解:

$2^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{669301}}^1$

素因数の和:669733

約数の個数: 24

約数和(自身を含む): 15816944864

約数和(自身を除く): 7927224676

約数列:

[1, 2, 4, 7, 14, 28, 421, 842, 1684, 2947, 5894, 11788, 669301, 1338602, 2677204, 4685107, 9370214, 18740428, 281775721, 563551442, 1127102884, 1972430047, 3944860094, 7889720188]

約数ペア:

[(1, 7889720188), (2, 3944860094), (4, 1972430047), (7, 1127102884), (14, 563551442), (28, 281775721), (421, 18740428), (842, 9370214), (1684, 4685107), (2947, 2677204), (5894, 1338602), (11788, 669301)]