20387504

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29633}}^1$

素因数の和:29684

約数の個数: 20

約数和(自身を含む): 40420776

約数和(自身を除く): 20033272

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29633, 59266, 118532, 237064, 474128, 1274219, 2548438, 5096876, 10193752, 20387504]

約数ペア:

[(1, 20387504), (2, 10193752), (4, 5096876), (8, 2548438), (16, 1274219), (43, 474128), (86, 237064), (172, 118532), (344, 59266), (688, 29633)]