20475147

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{587}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 34320384

約数和(自身を除く): 13845237

約数列:

[1, 3, 7, 11, 21, 33, 77, 151, 231, 453, 587, 1057, 1661, 1761, 3171, 4109, 4983, 6457, 11627, 12327, 19371, 34881, 45199, 88637, 135597, 265911, 620459, 975007, 1861377, 2925021, 6825049, 20475147]

約数ペア:

[(1, 20475147), (3, 6825049), (7, 2925021), (11, 1861377), (21, 975007), (33, 620459), (77, 265911), (151, 135597), (231, 88637), (453, 45199), (587, 34881), (1057, 19371), (1661, 12327), (1761, 11627), (3171, 6457), (4109, 4983)]