20384728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28001}}^1$

素因数の和:28027

約数の個数: 32

約数和(自身を含む): 47043360

約数和(自身を除く): 26658632

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28001, 56002, 112004, 196007, 224008, 364013, 392014, 728026, 784028, 1456052, 1568056, 2548091, 2912104, 5096182, 10192364, 20384728]

約数ペア:

[(1, 20384728), (2, 10192364), (4, 5096182), (7, 2912104), (8, 2548091), (13, 1568056), (14, 1456052), (26, 784028), (28, 728026), (52, 392014), (56, 364013), (91, 224008), (104, 196007), (182, 112004), (364, 56002), (728, 28001)]