20456786

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 36312192

約数和(自身を除く): 15855406

約数列:

[1, 2, 7, 14, 41, 82, 157, 227, 287, 314, 454, 574, 1099, 1589, 2198, 3178, 6437, 9307, 12874, 18614, 35639, 45059, 65149, 71278, 90118, 130298, 249473, 498946, 1461199, 2922398, 10228393, 20456786]

約数ペア:

[(1, 20456786), (2, 10228393), (7, 2922398), (14, 1461199), (41, 498946), (82, 249473), (157, 130298), (227, 90118), (287, 71278), (314, 65149), (454, 45059), (574, 35639), (1099, 18614), (1589, 12874), (2198, 9307), (3178, 6437)]