81163257

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 132422400

約数和(自身を除く): 51259143

約数列:

[1, 3, 7, 21, 29, 49, 79, 87, 147, 203, 237, 241, 553, 609, 723, 1421, 1659, 1687, 2291, 3871, 4263, 5061, 6873, 6989, 11613, 11809, 16037, 19039, 20967, 35427, 48111, 48923, 57117, 112259, 133273, 146769, 336777, 342461, 399819, 552131, 932911, 1027383, 1656393, 2798733, 3864917, 11594751, 27054419, 81163257]

約数ペア:

[(1, 81163257), (3, 27054419), (7, 11594751), (21, 3864917), (29, 2798733), (49, 1656393), (79, 1027383), (87, 932911), (147, 552131), (203, 399819), (237, 342461), (241, 336777), (553, 146769), (609, 133273), (723, 112259), (1421, 57117), (1659, 48923), (1687, 48111), (2291, 35427), (3871, 20967), (4263, 19039), (5061, 16037), (6873, 11809), (6989, 11613)]