21437552

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{2027}}^1$

素因数の和:2696

約数の個数: 20

約数和(自身を含む): 41618616

約数和(自身を除く): 20181064

約数列:

[1, 2, 4, 8, 16, 661, 1322, 2027, 2644, 4054, 5288, 8108, 10576, 16216, 32432, 1339847, 2679694, 5359388, 10718776, 21437552]

約数ペア:

[(1, 21437552), (2, 10718776), (4, 5359388), (8, 2679694), (16, 1339847), (661, 32432), (1322, 16216), (2027, 10576), (2644, 8108), (4054, 5288)]