20286904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{857}}^1$

素因数の和:1143

約数の個数: 32

約数和(自身を含む): 41698800

約数和(自身を除く): 21411896

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 269, 538, 857, 1076, 1714, 2152, 2959, 3428, 5918, 6856, 9427, 11836, 18854, 23672, 37708, 75416, 230533, 461066, 922132, 1844264, 2535863, 5071726, 10143452, 20286904]

約数ペア:

[(1, 20286904), (2, 10143452), (4, 5071726), (8, 2535863), (11, 1844264), (22, 922132), (44, 461066), (88, 230533), (269, 75416), (538, 37708), (857, 23672), (1076, 18854), (1714, 11836), (2152, 9427), (2959, 6856), (3428, 5918)]