20856472

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28649}}^1$

素因数の和:28675

約数の個数: 32

約数和(自身を含む): 48132000

約数和(自身を除く): 27275528

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28649, 57298, 114596, 200543, 229192, 372437, 401086, 744874, 802172, 1489748, 1604344, 2607059, 2979496, 5214118, 10428236, 20856472]

約数ペア:

[(1, 20856472), (2, 10428236), (4, 5214118), (7, 2979496), (8, 2607059), (13, 1604344), (14, 1489748), (26, 802172), (28, 744874), (52, 401086), (56, 372437), (91, 229192), (104, 200543), (182, 114596), (364, 57298), (728, 28649)]