21292784

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42929}}^1$

素因数の和:42968

約数の個数: 20

約数和(自身を含む): 42586560

約数和(自身を除く): 21293776

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42929, 85858, 171716, 343432, 686864, 1330799, 2661598, 5323196, 10646392, 21292784]

約数ペア:

[(1, 21292784), (2, 10646392), (4, 5323196), (8, 2661598), (16, 1330799), (31, 686864), (62, 343432), (124, 171716), (248, 85858), (496, 42929)]