28152663

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 50761728

約数和(自身を除く): 22609065

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 67, 77, 107, 119, 187, 201, 231, 321, 357, 469, 561, 737, 749, 1139, 1177, 1309, 1407, 1819, 2211, 2247, 3417, 3531, 3927, 5159, 5457, 7169, 7973, 8239, 12529, 12733, 15477, 20009, 21507, 23919, 24717, 37587, 38199, 50183, 60027, 78859, 87703, 121873, 140063, 150549, 236577, 263109, 365619, 420189, 552013, 853111, 1340603, 1656039, 2559333, 4021809, 9384221, 28152663]

約数ペア:

[(1, 28152663), (3, 9384221), (7, 4021809), (11, 2559333), (17, 1656039), (21, 1340603), (33, 853111), (51, 552013), (67, 420189), (77, 365619), (107, 263109), (119, 236577), (187, 150549), (201, 140063), (231, 121873), (321, 87703), (357, 78859), (469, 60027), (561, 50183), (737, 38199), (749, 37587), (1139, 24717), (1177, 23919), (1309, 21507), (1407, 20009), (1819, 15477), (2211, 12733), (2247, 12529), (3417, 8239), (3531, 7973), (3927, 7169), (5159, 5457)]