21389856

素因数分解:

$2^5\times 3^1\times {\mathrm{181}}^1\times {\mathrm{1231}}^1$

素因数の和:1425

約数の個数: 48

約数和(自身を含む): 56504448

約数和(自身を除く): 35114592

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 181, 362, 543, 724, 1086, 1231, 1448, 2172, 2462, 2896, 3693, 4344, 4924, 5792, 7386, 8688, 9848, 14772, 17376, 19696, 29544, 39392, 59088, 118176, 222811, 445622, 668433, 891244, 1336866, 1782488, 2673732, 3564976, 5347464, 7129952, 10694928, 21389856]

約数ペア:

[(1, 21389856), (2, 10694928), (3, 7129952), (4, 5347464), (6, 3564976), (8, 2673732), (12, 1782488), (16, 1336866), (24, 891244), (32, 668433), (48, 445622), (96, 222811), (181, 118176), (362, 59088), (543, 39392), (724, 29544), (1086, 19696), (1231, 17376), (1448, 14772), (2172, 9848), (2462, 8688), (2896, 7386), (3693, 5792), (4344, 4924)]