18837368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 22530952

約数列:

[1, 2, 4, 8, 11, 22, 23, 41, 44, 46, 82, 88, 92, 164, 184, 227, 253, 328, 451, 454, 506, 902, 908, 943, 1012, 1804, 1816, 1886, 2024, 2497, 3608, 3772, 4994, 5221, 7544, 9307, 9988, 10373, 10442, 18614, 19976, 20746, 20884, 37228, 41492, 41768, 57431, 74456, 82984, 102377, 114862, 204754, 214061, 229724, 409508, 428122, 459448, 819016, 856244, 1712488, 2354671, 4709342, 9418684, 18837368]

約数ペア:

[(1, 18837368), (2, 9418684), (4, 4709342), (8, 2354671), (11, 1712488), (22, 856244), (23, 819016), (41, 459448), (44, 428122), (46, 409508), (82, 229724), (88, 214061), (92, 204754), (164, 114862), (184, 102377), (227, 82984), (253, 74456), (328, 57431), (451, 41768), (454, 41492), (506, 37228), (902, 20884), (908, 20746), (943, 19976), (1012, 18614), (1804, 10442), (1816, 10373), (1886, 9988), (2024, 9307), (2497, 7544), (3608, 5221), (3772, 4994)]