21063476

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 47449920

約数和(自身を除く): 26386444

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 137, 238, 266, 274, 289, 323, 476, 532, 548, 578, 646, 959, 1156, 1292, 1918, 2023, 2261, 2329, 2603, 3836, 4046, 4522, 4658, 5206, 5491, 8092, 9044, 9316, 10412, 10982, 16303, 18221, 21964, 32606, 36442, 38437, 39593, 44251, 65212, 72884, 76874, 79186, 88502, 153748, 158372, 177004, 277151, 309757, 554302, 619514, 752267, 1108604, 1239028, 1504534, 3009068, 5265869, 10531738, 21063476]

約数ペア:

[(1, 21063476), (2, 10531738), (4, 5265869), (7, 3009068), (14, 1504534), (17, 1239028), (19, 1108604), (28, 752267), (34, 619514), (38, 554302), (68, 309757), (76, 277151), (119, 177004), (133, 158372), (137, 153748), (238, 88502), (266, 79186), (274, 76874), (289, 72884), (323, 65212), (476, 44251), (532, 39593), (548, 38437), (578, 36442), (646, 32606), (959, 21964), (1156, 18221), (1292, 16303), (1918, 10982), (2023, 10412), (2261, 9316), (2329, 9044), (2603, 8092), (3836, 5491), (4046, 5206), (4522, 4658)]