251738151

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{4871}}^1$

素因数の和:5011

約数の個数: 32

約数和(自身を含む): 404103168

約数和(自身を除く): 152365017

約数列:

[1, 3, 7, 21, 23, 69, 107, 161, 321, 483, 749, 2247, 2461, 4871, 7383, 14613, 17227, 34097, 51681, 102291, 112033, 336099, 521197, 784231, 1563591, 2352693, 3648379, 10945137, 11987531, 35962593, 83912717, 251738151]

約数ペア:

[(1, 251738151), (3, 83912717), (7, 35962593), (21, 11987531), (23, 10945137), (69, 3648379), (107, 2352693), (161, 1563591), (321, 784231), (483, 521197), (749, 336099), (2247, 112033), (2461, 102291), (4871, 51681), (7383, 34097), (14613, 17227)]