20779286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 35271936

約数和(自身を除く): 14492650

約数列:

[1, 2, 11, 22, 53, 71, 106, 142, 251, 502, 583, 781, 1166, 1562, 2761, 3763, 5522, 7526, 13303, 17821, 26606, 35642, 41393, 82786, 146333, 196031, 292666, 392062, 944513, 1889026, 10389643, 20779286]

約数ペア:

[(1, 20779286), (2, 10389643), (11, 1889026), (22, 944513), (53, 392062), (71, 292666), (106, 196031), (142, 146333), (251, 82786), (502, 41393), (583, 35642), (781, 26606), (1166, 17821), (1562, 13303), (2761, 7526), (3763, 5522)]