28391312

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{21379}}^1$

素因数の和:21470

約数の個数: 20

約数和(自身を含む): 55673520

約数和(自身を除く): 27282208

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 21379, 42758, 85516, 171032, 342064, 1774457, 3548914, 7097828, 14195656, 28391312]

約数ペア:

[(1, 28391312), (2, 14195656), (4, 7097828), (8, 3548914), (16, 1774457), (83, 342064), (166, 171032), (332, 85516), (664, 42758), (1328, 21379)]