21343042

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 39940992

約数和(自身を除く): 18597950

約数列:

[1, 2, 7, 14, 19, 38, 41, 82, 103, 133, 206, 266, 287, 361, 574, 721, 722, 779, 1442, 1558, 1957, 2527, 3914, 4223, 5054, 5453, 8446, 10906, 13699, 14801, 27398, 29561, 29602, 37183, 59122, 74366, 80237, 103607, 160474, 207214, 260281, 520562, 561659, 1123318, 1524503, 3049006, 10671521, 21343042]

約数ペア:

[(1, 21343042), (2, 10671521), (7, 3049006), (14, 1524503), (19, 1123318), (38, 561659), (41, 520562), (82, 260281), (103, 207214), (133, 160474), (206, 103607), (266, 80237), (287, 74366), (361, 59122), (574, 37183), (721, 29602), (722, 29561), (779, 27398), (1442, 14801), (1558, 13699), (1957, 10906), (2527, 8446), (3914, 5453), (4223, 5054)]