20497568

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7039}}^1$

素因数の和:7069

約数の個数: 48

約数和(自身を含む): 49674240

約数和(自身を除く): 29176672

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7039, 14078, 28156, 49273, 56312, 91507, 98546, 112624, 183014, 197092, 225248, 366028, 394184, 640549, 732056, 788368, 1281098, 1464112, 1576736, 2562196, 2928224, 5124392, 10248784, 20497568]

約数ペア:

[(1, 20497568), (2, 10248784), (4, 5124392), (7, 2928224), (8, 2562196), (13, 1576736), (14, 1464112), (16, 1281098), (26, 788368), (28, 732056), (32, 640549), (52, 394184), (56, 366028), (91, 225248), (104, 197092), (112, 183014), (182, 112624), (208, 98546), (224, 91507), (364, 56312), (416, 49273), (728, 28156), (1456, 14078), (2912, 7039)]