21379248

素因数分解:

$2^4\times 3^3\times {\mathrm{11}}^2\times {\mathrm{409}}^1$

素因数の和:448

約数の個数: 120

約数和(自身を含む): 67617200

約数和(自身を除く): 46237952

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 72, 88, 99, 108, 121, 132, 144, 176, 198, 216, 242, 264, 297, 363, 396, 409, 432, 484, 528, 594, 726, 792, 818, 968, 1089, 1188, 1227, 1452, 1584, 1636, 1936, 2178, 2376, 2454, 2904, 3267, 3272, 3681, 4356, 4499, 4752, 4908, 5808, 6534, 6544, 7362, 8712, 8998, 9816, 11043, 13068, 13497, 14724, 17424, 17996, 19632, 22086, 26136, 26994, 29448, 35992, 40491, 44172, 49489, 52272, 53988, 58896, 71984, 80982, 88344, 98978, 107976, 121473, 148467, 161964, 176688, 197956, 215952, 242946, 296934, 323928, 395912, 445401, 485892, 593868, 647856, 791824, 890802, 971784, 1187736, 1336203, 1781604, 1943568, 2375472, 2672406, 3563208, 5344812, 7126416, 10689624, 21379248]

約数ペア:

[(1, 21379248), (2, 10689624), (3, 7126416), (4, 5344812), (6, 3563208), (8, 2672406), (9, 2375472), (11, 1943568), (12, 1781604), (16, 1336203), (18, 1187736), (22, 971784), (24, 890802), (27, 791824), (33, 647856), (36, 593868), (44, 485892), (48, 445401), (54, 395912), (66, 323928), (72, 296934), (88, 242946), (99, 215952), (108, 197956), (121, 176688), (132, 161964), (144, 148467), (176, 121473), (198, 107976), (216, 98978), (242, 88344), (264, 80982), (297, 71984), (363, 58896), (396, 53988), (409, 52272), (432, 49489), (484, 44172), (528, 40491), (594, 35992), (726, 29448), (792, 26994), (818, 26136), (968, 22086), (1089, 19632), (1188, 17996), (1227, 17424), (1452, 14724), (1584, 13497), (1636, 13068), (1936, 11043), (2178, 9816), (2376, 8998), (2454, 8712), (2904, 7362), (3267, 6544), (3272, 6534), (3681, 5808), (4356, 4908), (4499, 4752)]