20542256

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10789}}^1$

素因数の和:10821

約数の個数: 40

約数和(自身を含む): 48166560

約数和(自身を除く): 27624304

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10789, 21578, 43156, 75523, 86312, 151046, 172624, 183413, 302092, 366826, 604184, 733652, 1208368, 1283891, 1467304, 2567782, 2934608, 5135564, 10271128, 20542256]

約数ペア:

[(1, 20542256), (2, 10271128), (4, 5135564), (7, 2934608), (8, 2567782), (14, 1467304), (16, 1283891), (17, 1208368), (28, 733652), (34, 604184), (56, 366826), (68, 302092), (112, 183413), (119, 172624), (136, 151046), (238, 86312), (272, 75523), (476, 43156), (952, 21578), (1904, 10789)]