20885144

素因数分解:

$2^3\times 7^1\times {\mathrm{461}}^1\times {\mathrm{809}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 44906400

約数和(自身を除く): 24021256

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 461, 809, 922, 1618, 1844, 3227, 3236, 3688, 5663, 6454, 6472, 11326, 12908, 22652, 25816, 45304, 372949, 745898, 1491796, 2610643, 2983592, 5221286, 10442572, 20885144]

約数ペア:

[(1, 20885144), (2, 10442572), (4, 5221286), (7, 2983592), (8, 2610643), (14, 1491796), (28, 745898), (56, 372949), (461, 45304), (809, 25816), (922, 22652), (1618, 12908), (1844, 11326), (3227, 6472), (3236, 6454), (3688, 5663)]