20318392

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81929}}^1$

素因数の和:81966

約数の個数: 16

約数和(自身を含む): 39326400

約数和(自身を除く): 19008008

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81929, 163858, 327716, 655432, 2539799, 5079598, 10159196, 20318392]

約数ペア:

[(1, 20318392), (2, 10159196), (4, 5079598), (8, 2539799), (31, 655432), (62, 327716), (124, 163858), (248, 81929)]