21091749302

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{250919}}^1$

素因数の和:251048

約数の個数: 32

約数和(自身を含む): 35283366720

約数和(自身を除く): 14191617418

約数列:

[1, 2, 13, 26, 53, 61, 106, 122, 689, 793, 1378, 1586, 3233, 6466, 42029, 84058, 250919, 501838, 3261947, 6523894, 13298707, 15306059, 26597414, 30612118, 172883191, 198978767, 345766382, 397957534, 811221127, 1622442254, 10545874651, 21091749302]

約数ペア:

[(1, 21091749302), (2, 10545874651), (13, 1622442254), (26, 811221127), (53, 397957534), (61, 345766382), (106, 198978767), (122, 172883191), (689, 30612118), (793, 26597414), (1378, 15306059), (1586, 13298707), (3233, 6523894), (6466, 3261947), (42029, 501838), (84058, 250919)]