20581912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2711}}^1$

素因数の和:2803

約数の個数: 32

約数和(自身を含む): 42144480

約数和(自身を除く): 21562568

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2711, 3796, 5422, 7592, 10844, 21688, 35243, 70486, 140972, 197903, 281944, 395806, 791612, 1583224, 2572739, 5145478, 10290956, 20581912]

約数ペア:

[(1, 20581912), (2, 10290956), (4, 5145478), (8, 2572739), (13, 1583224), (26, 791612), (52, 395806), (73, 281944), (104, 197903), (146, 140972), (292, 70486), (584, 35243), (949, 21688), (1898, 10844), (2711, 7592), (3796, 5422)]