21553291269

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{53}}^2\times {\mathrm{14957}}^1$

素因数の和:15091

約数の個数: 48

約数和(自身を含む): 34259803200

約数和(自身を除く): 12706511931

約数列:

[1, 3, 9, 19, 27, 53, 57, 159, 171, 477, 513, 1007, 1431, 2809, 3021, 8427, 9063, 14957, 25281, 27189, 44871, 53371, 75843, 134613, 160113, 284183, 403839, 480339, 792721, 852549, 1441017, 2378163, 2557647, 7134489, 7672941, 15061699, 21403467, 42014213, 45185097, 126042639, 135555291, 378127917, 406665873, 798270047, 1134383751, 2394810141, 7184430423, 21553291269]

約数ペア:

[(1, 21553291269), (3, 7184430423), (9, 2394810141), (19, 1134383751), (27, 798270047), (53, 406665873), (57, 378127917), (159, 135555291), (171, 126042639), (477, 45185097), (513, 42014213), (1007, 21403467), (1431, 15061699), (2809, 7672941), (3021, 7134489), (8427, 2557647), (9063, 2378163), (14957, 1441017), (25281, 852549), (27189, 792721), (44871, 480339), (53371, 403839), (75843, 284183), (134613, 160113)]