21558584

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158519}}^1$

素因数の和:158542

約数の個数: 16

約数和(自身を含む): 42800400

約数和(自身を除く): 21241816

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158519, 317038, 634076, 1268152, 2694823, 5389646, 10779292, 21558584]

約数ペア:

[(1, 21558584), (2, 10779292), (4, 5389646), (8, 2694823), (17, 1268152), (34, 634076), (68, 317038), (136, 158519)]