21582974

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1979}}^1$

素因数の和:2048

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 18333826

約数列:

[1, 2, 7, 14, 19, 38, 41, 82, 133, 266, 287, 574, 779, 1558, 1979, 3958, 5453, 10906, 13853, 27706, 37601, 75202, 81139, 162278, 263207, 526414, 567973, 1135946, 1541641, 3083282, 10791487, 21582974]

約数ペア:

[(1, 21582974), (2, 10791487), (7, 3083282), (14, 1541641), (19, 1135946), (38, 567973), (41, 526414), (82, 263207), (133, 162278), (266, 81139), (287, 75202), (574, 37601), (779, 27706), (1558, 13853), (1979, 10906), (3958, 5453)]