208939419

素因数分解:

$3^7\times {\mathrm{13}}^1\times {\mathrm{7349}}^1$

素因数の和:7383

約数の個数: 32

約数和(自身を含む): 337512000

約数和(自身を除く): 128572581

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2187, 3159, 7349, 9477, 22047, 28431, 66141, 95537, 198423, 286611, 595269, 859833, 1785807, 2579499, 5357421, 7738497, 16072263, 23215491, 69646473, 208939419]

約数ペア:

[(1, 208939419), (3, 69646473), (9, 23215491), (13, 16072263), (27, 7738497), (39, 5357421), (81, 2579499), (117, 1785807), (243, 859833), (351, 595269), (729, 286611), (1053, 198423), (2187, 95537), (3159, 66141), (7349, 28431), (9477, 22047)]