19999546

素因数分解:

$2^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2293}}^1$

素因数の和:2398

約数の個数: 24

約数和(自身を含む): 35304660

約数和(自身を除く): 15305114

約数列:

[1, 2, 7, 14, 49, 89, 98, 178, 623, 1246, 2293, 4361, 4586, 8722, 16051, 32102, 112357, 204077, 224714, 408154, 1428539, 2857078, 9999773, 19999546]

約数ペア:

[(1, 19999546), (2, 9999773), (7, 2857078), (14, 1428539), (49, 408154), (89, 224714), (98, 204077), (178, 112357), (623, 32102), (1246, 16051), (2293, 8722), (4361, 4586)]