21225328

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42793}}^1$

素因数の和:42832

約数の個数: 20

約数和(自身を含む): 42451648

約数和(自身を除く): 21226320

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42793, 85586, 171172, 342344, 684688, 1326583, 2653166, 5306332, 10612664, 21225328]

約数ペア:

[(1, 21225328), (2, 10612664), (4, 5306332), (8, 2653166), (16, 1326583), (31, 684688), (62, 342344), (124, 171172), (248, 85586), (496, 42793)]