25412821

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 30878496

約数和(自身を除く): 5465675

約数列:

[1, 7, 37, 49, 107, 131, 259, 749, 917, 1813, 3959, 4847, 5243, 6419, 14017, 27713, 33929, 98119, 193991, 237503, 518629, 686833, 3630403, 25412821]

約数ペア:

[(1, 25412821), (7, 3630403), (37, 686833), (49, 518629), (107, 237503), (131, 193991), (259, 98119), (749, 33929), (917, 27713), (1813, 14017), (3959, 6419), (4847, 5243)]