20705456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76123}}^1$

素因数の和:76148

約数の個数: 20

約数和(自身を含む): 42477192

約数和(自身を除く): 21771736

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76123, 152246, 304492, 608984, 1217968, 1294091, 2588182, 5176364, 10352728, 20705456]

約数ペア:

[(1, 20705456), (2, 10352728), (4, 5176364), (8, 2588182), (16, 1294091), (17, 1217968), (34, 608984), (68, 304492), (136, 152246), (272, 76123)]