20858590956

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{989309}}^1$

素因数の和:989574

約数の個数: 48

約数和(自身を含む): 55844570880

約数和(自身を除く): 34985979924

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 251, 502, 753, 1004, 1506, 1757, 3012, 3514, 5271, 7028, 10542, 21084, 989309, 1978618, 2967927, 3957236, 5935854, 6925163, 11871708, 13850326, 20775489, 27700652, 41550978, 83101956, 248316559, 496633118, 744949677, 993266236, 1489899354, 1738215913, 2979798708, 3476431826, 5214647739, 6952863652, 10429295478, 20858590956]

約数ペア:

[(1, 20858590956), (2, 10429295478), (3, 6952863652), (4, 5214647739), (6, 3476431826), (7, 2979798708), (12, 1738215913), (14, 1489899354), (21, 993266236), (28, 744949677), (42, 496633118), (84, 248316559), (251, 83101956), (502, 41550978), (753, 27700652), (1004, 20775489), (1506, 13850326), (1757, 11871708), (3012, 6925163), (3514, 5935854), (5271, 3957236), (7028, 2967927), (10542, 1978618), (21084, 989309)]