19998198

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 49040640

約数和(自身を除く): 29042442

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 131, 198, 257, 262, 297, 393, 514, 594, 771, 786, 1179, 1441, 1542, 2313, 2358, 2827, 2882, 3537, 4323, 4626, 5654, 6939, 7074, 8481, 8646, 12969, 13878, 16962, 25443, 25938, 33667, 38907, 50886, 67334, 76329, 77814, 101001, 152658, 202002, 303003, 370337, 606006, 740674, 909009, 1111011, 1818018, 2222022, 3333033, 6666066, 9999099, 19998198]

約数ペア:

[(1, 19998198), (2, 9999099), (3, 6666066), (6, 3333033), (9, 2222022), (11, 1818018), (18, 1111011), (22, 909009), (27, 740674), (33, 606006), (54, 370337), (66, 303003), (99, 202002), (131, 152658), (198, 101001), (257, 77814), (262, 76329), (297, 67334), (393, 50886), (514, 38907), (594, 33667), (771, 25938), (786, 25443), (1179, 16962), (1441, 13878), (1542, 12969), (2313, 8646), (2358, 8481), (2827, 7074), (2882, 6939), (3537, 5654), (4323, 4626)]