21887488

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:253

約数の個数: 80

約数和(自身を含む): 51853824

約数和(自身を除く): 29966336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 197, 217, 224, 248, 256, 394, 434, 448, 496, 512, 788, 868, 896, 992, 1379, 1576, 1736, 1792, 1984, 2758, 3152, 3472, 3584, 3968, 5516, 6107, 6304, 6944, 7936, 11032, 12214, 12608, 13888, 15872, 22064, 24428, 25216, 27776, 42749, 44128, 48856, 50432, 55552, 85498, 88256, 97712, 100864, 111104, 170996, 176512, 195424, 341992, 353024, 390848, 683984, 706048, 781696, 1367968, 1563392, 2735936, 3126784, 5471872, 10943744, 21887488]

約数ペア:

[(1, 21887488), (2, 10943744), (4, 5471872), (7, 3126784), (8, 2735936), (14, 1563392), (16, 1367968), (28, 781696), (31, 706048), (32, 683984), (56, 390848), (62, 353024), (64, 341992), (112, 195424), (124, 176512), (128, 170996), (197, 111104), (217, 100864), (224, 97712), (248, 88256), (256, 85498), (394, 55552), (434, 50432), (448, 48856), (496, 44128), (512, 42749), (788, 27776), (868, 25216), (896, 24428), (992, 22064), (1379, 15872), (1576, 13888), (1736, 12608), (1792, 12214), (1984, 11032), (2758, 7936), (3152, 6944), (3472, 6304), (3584, 6107), (3968, 5516)]