20857634

素因数分解:

$2^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{643}}^1$

素因数の和:990

約数の個数: 24

約数和(自身を含む): 36561168

約数和(自身を除く): 15703534

約数列:

[1, 2, 7, 14, 49, 98, 331, 643, 662, 1286, 2317, 4501, 4634, 9002, 16219, 31507, 32438, 63014, 212833, 425666, 1489831, 2979662, 10428817, 20857634]

約数ペア:

[(1, 20857634), (2, 10428817), (7, 2979662), (14, 1489831), (49, 425666), (98, 212833), (331, 63014), (643, 32438), (662, 31507), (1286, 16219), (2317, 9002), (4501, 4634)]