21543368

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{853}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 51649920

約数和(自身を除く): 30106552

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 41, 44, 56, 77, 82, 88, 154, 164, 287, 308, 328, 451, 574, 616, 853, 902, 1148, 1706, 1804, 2296, 3157, 3412, 3608, 5971, 6314, 6824, 9383, 11942, 12628, 18766, 23884, 25256, 34973, 37532, 47768, 65681, 69946, 75064, 131362, 139892, 244811, 262724, 279784, 384703, 489622, 525448, 769406, 979244, 1538812, 1958488, 2692921, 3077624, 5385842, 10771684, 21543368]

約数ペア:

[(1, 21543368), (2, 10771684), (4, 5385842), (7, 3077624), (8, 2692921), (11, 1958488), (14, 1538812), (22, 979244), (28, 769406), (41, 525448), (44, 489622), (56, 384703), (77, 279784), (82, 262724), (88, 244811), (154, 139892), (164, 131362), (287, 75064), (308, 69946), (328, 65681), (451, 47768), (574, 37532), (616, 34973), (853, 25256), (902, 23884), (1148, 18766), (1706, 12628), (1804, 11942), (2296, 9383), (3157, 6824), (3412, 6314), (3608, 5971)]