20551076

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 45993024

約数和(自身を除く): 25441948

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 101, 169, 172, 182, 202, 301, 338, 364, 404, 559, 602, 676, 707, 1118, 1183, 1204, 1313, 1414, 2236, 2366, 2626, 2828, 3913, 4343, 4732, 5252, 7267, 7826, 8686, 9191, 14534, 15652, 17069, 17372, 18382, 29068, 30401, 34138, 36764, 50869, 56459, 60802, 68276, 101738, 112918, 119483, 121604, 203476, 225836, 238966, 395213, 477932, 733967, 790426, 1467934, 1580852, 2935868, 5137769, 10275538, 20551076]

約数ペア:

[(1, 20551076), (2, 10275538), (4, 5137769), (7, 2935868), (13, 1580852), (14, 1467934), (26, 790426), (28, 733967), (43, 477932), (52, 395213), (86, 238966), (91, 225836), (101, 203476), (169, 121604), (172, 119483), (182, 112918), (202, 101738), (301, 68276), (338, 60802), (364, 56459), (404, 50869), (559, 36764), (602, 34138), (676, 30401), (707, 29068), (1118, 18382), (1183, 17372), (1204, 17069), (1313, 15652), (1414, 14534), (2236, 9191), (2366, 8686), (2626, 7826), (2828, 7267), (3913, 5252), (4343, 4732)]