20398878

素因数分解:

$2^1\times 3^6\times {\mathrm{17}}^1\times {\mathrm{823}}^1$

素因数の和:860

約数の個数: 56

約数和(自身を含む): 48634128

約数和(自身を除く): 28235250

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 243, 306, 459, 486, 729, 823, 918, 1377, 1458, 1646, 2469, 2754, 4131, 4938, 7407, 8262, 12393, 13991, 14814, 22221, 24786, 27982, 41973, 44442, 66663, 83946, 125919, 133326, 199989, 251838, 377757, 399978, 599967, 755514, 1133271, 1199934, 2266542, 3399813, 6799626, 10199439, 20398878]

約数ペア:

[(1, 20398878), (2, 10199439), (3, 6799626), (6, 3399813), (9, 2266542), (17, 1199934), (18, 1133271), (27, 755514), (34, 599967), (51, 399978), (54, 377757), (81, 251838), (102, 199989), (153, 133326), (162, 125919), (243, 83946), (306, 66663), (459, 44442), (486, 41973), (729, 27982), (823, 24786), (918, 22221), (1377, 14814), (1458, 13991), (1646, 12393), (2469, 8262), (2754, 7407), (4131, 4938)]