20565012795

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{306643}}^1$

素因数の和:306931

約数の個数: 32

約数和(自身を含む): 34972134912

約数和(自身を除く): 14407122117

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 263, 789, 1315, 3945, 4471, 13413, 22355, 67065, 306643, 919929, 1533215, 4599645, 5212931, 15638793, 26064655, 78193965, 80647109, 241941327, 403235545, 1209706635, 1371000853, 4113002559, 6855004265, 20565012795]

約数ペア:

[(1, 20565012795), (3, 6855004265), (5, 4113002559), (15, 1371000853), (17, 1209706635), (51, 403235545), (85, 241941327), (255, 80647109), (263, 78193965), (789, 26064655), (1315, 15638793), (3945, 5212931), (4471, 4599645), (13413, 1533215), (22355, 919929), (67065, 306643)]