20895896

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27488104

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 41, 56, 76, 82, 133, 152, 164, 266, 287, 328, 479, 532, 574, 779, 958, 1064, 1148, 1558, 1916, 2296, 3116, 3353, 3832, 5453, 6232, 6706, 9101, 10906, 13412, 18202, 19639, 21812, 26824, 36404, 39278, 43624, 63707, 72808, 78556, 127414, 137473, 157112, 254828, 274946, 373141, 509656, 549892, 746282, 1099784, 1492564, 2611987, 2985128, 5223974, 10447948, 20895896]

約数ペア:

[(1, 20895896), (2, 10447948), (4, 5223974), (7, 2985128), (8, 2611987), (14, 1492564), (19, 1099784), (28, 746282), (38, 549892), (41, 509656), (56, 373141), (76, 274946), (82, 254828), (133, 157112), (152, 137473), (164, 127414), (266, 78556), (287, 72808), (328, 63707), (479, 43624), (532, 39278), (574, 36404), (779, 26824), (958, 21812), (1064, 19639), (1148, 18202), (1558, 13412), (1916, 10906), (2296, 9101), (3116, 6706), (3353, 6232), (3832, 5453)]