20860119

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 38425600

約数和(自身を除く): 17565481

約数列:

[1, 3, 7, 9, 19, 21, 27, 37, 57, 63, 111, 133, 157, 171, 189, 259, 333, 399, 471, 513, 703, 777, 999, 1099, 1197, 1413, 2109, 2331, 2983, 3297, 3591, 4239, 4921, 5809, 6327, 6993, 8949, 9891, 14763, 17427, 18981, 20881, 26847, 29673, 40663, 44289, 52281, 62643, 80541, 110371, 121989, 132867, 156843, 187929, 331113, 365967, 563787, 772597, 993339, 1097901, 2317791, 2980017, 6953373, 20860119]

約数ペア:

[(1, 20860119), (3, 6953373), (7, 2980017), (9, 2317791), (19, 1097901), (21, 993339), (27, 772597), (37, 563787), (57, 365967), (63, 331113), (111, 187929), (133, 156843), (157, 132867), (171, 121989), (189, 110371), (259, 80541), (333, 62643), (399, 52281), (471, 44289), (513, 40663), (703, 29673), (777, 26847), (999, 20881), (1099, 18981), (1197, 17427), (1413, 14763), (2109, 9891), (2331, 8949), (2983, 6993), (3297, 6327), (3591, 5809), (4239, 4921)]