19643824

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{15541}}^1$

素因数の和:15628

約数の個数: 20

約数和(自身を含む): 38544160

約数和(自身を除く): 18900336

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 15541, 31082, 62164, 124328, 248656, 1227739, 2455478, 4910956, 9821912, 19643824]

約数ペア:

[(1, 19643824), (2, 9821912), (4, 4910956), (8, 2455478), (16, 1227739), (79, 248656), (158, 124328), (316, 62164), (632, 31082), (1264, 15541)]