21077728

素因数分解:

$2^5\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1289}}^1$

素因数の和:1379

約数の個数: 48

約数和(自身を含む): 48111840

約数和(自身を除く): 27034112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 73, 112, 146, 224, 292, 511, 584, 1022, 1168, 1289, 2044, 2336, 2578, 4088, 5156, 8176, 9023, 10312, 16352, 18046, 20624, 36092, 41248, 72184, 94097, 144368, 188194, 288736, 376388, 658679, 752776, 1317358, 1505552, 2634716, 3011104, 5269432, 10538864, 21077728]

約数ペア:

[(1, 21077728), (2, 10538864), (4, 5269432), (7, 3011104), (8, 2634716), (14, 1505552), (16, 1317358), (28, 752776), (32, 658679), (56, 376388), (73, 288736), (112, 188194), (146, 144368), (224, 94097), (292, 72184), (511, 41248), (584, 36092), (1022, 20624), (1168, 18046), (1289, 16352), (2044, 10312), (2336, 9023), (2578, 8176), (4088, 5156)]