21054880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1709}}^1$

素因数の和:1742

約数の個数: 96

約数和(自身を含む): 62052480

約数和(自身を除く): 40997600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1709, 1760, 2464, 3080, 3418, 6160, 6836, 8545, 11963, 12320, 13672, 17090, 18799, 23926, 27344, 34180, 37598, 47852, 54688, 59815, 68360, 75196, 93995, 95704, 119630, 131593, 136720, 150392, 187990, 191408, 239260, 263186, 273440, 300784, 375980, 382816, 478520, 526372, 601568, 657965, 751960, 957040, 1052744, 1315930, 1503920, 1914080, 2105488, 2631860, 3007840, 4210976, 5263720, 10527440, 21054880]

約数ペア:

[(1, 21054880), (2, 10527440), (4, 5263720), (5, 4210976), (7, 3007840), (8, 2631860), (10, 2105488), (11, 1914080), (14, 1503920), (16, 1315930), (20, 1052744), (22, 957040), (28, 751960), (32, 657965), (35, 601568), (40, 526372), (44, 478520), (55, 382816), (56, 375980), (70, 300784), (77, 273440), (80, 263186), (88, 239260), (110, 191408), (112, 187990), (140, 150392), (154, 136720), (160, 131593), (176, 119630), (220, 95704), (224, 93995), (280, 75196), (308, 68360), (352, 59815), (385, 54688), (440, 47852), (560, 37598), (616, 34180), (770, 27344), (880, 23926), (1120, 18799), (1232, 17090), (1540, 13672), (1709, 12320), (1760, 11963), (2464, 8545), (3080, 6836), (3418, 6160)]