20804868801

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{857}}^1\times {\mathrm{1979}}^1$

素因数の和:2918

約数の個数: 48

約数和(自身を含む): 31802284800

約数和(自身を除く): 10997415999

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 857, 1363, 1979, 2571, 4089, 5937, 7713, 12267, 17811, 24853, 40279, 57391, 74559, 93013, 120837, 172173, 223677, 279039, 362511, 516519, 837117, 1168091, 1696003, 2697377, 3504273, 5088009, 8092131, 10512819, 15264027, 24276393, 49184087, 79712141, 147552261, 239136423, 442656783, 717409269, 2311652089, 6934956267, 20804868801]

約数ペア:

[(1, 20804868801), (3, 6934956267), (9, 2311652089), (29, 717409269), (47, 442656783), (87, 239136423), (141, 147552261), (261, 79712141), (423, 49184087), (857, 24276393), (1363, 15264027), (1979, 10512819), (2571, 8092131), (4089, 5088009), (5937, 3504273), (7713, 2697377), (12267, 1696003), (17811, 1168091), (24853, 837117), (40279, 516519), (57391, 362511), (74559, 279039), (93013, 223677), (120837, 172173)]