21178304

素因数分解:

$2^6\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1153}}^1$

素因数の和:1213

約数の個数: 56

約数和(自身を含む): 49243488

約数和(自身を除く): 28065184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 164, 224, 287, 328, 448, 574, 656, 1148, 1153, 1312, 2296, 2306, 2624, 4592, 4612, 8071, 9184, 9224, 16142, 18368, 18448, 32284, 36896, 47273, 64568, 73792, 94546, 129136, 189092, 258272, 330911, 378184, 516544, 661822, 756368, 1323644, 1512736, 2647288, 3025472, 5294576, 10589152, 21178304]

約数ペア:

[(1, 21178304), (2, 10589152), (4, 5294576), (7, 3025472), (8, 2647288), (14, 1512736), (16, 1323644), (28, 756368), (32, 661822), (41, 516544), (56, 378184), (64, 330911), (82, 258272), (112, 189092), (164, 129136), (224, 94546), (287, 73792), (328, 64568), (448, 47273), (574, 36896), (656, 32284), (1148, 18448), (1153, 18368), (1312, 16142), (2296, 9224), (2306, 9184), (2624, 8071), (4592, 4612)]