21059504

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16661}}^1$

素因数の和:16748

約数の個数: 20

約数和(自身を含む): 41321760

約数和(自身を除く): 20262256

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16661, 33322, 66644, 133288, 266576, 1316219, 2632438, 5264876, 10529752, 21059504]

約数ペア:

[(1, 21059504), (2, 10529752), (4, 5264876), (8, 2632438), (16, 1316219), (79, 266576), (158, 133288), (316, 66644), (632, 33322), (1264, 16661)]