21013552

素因数分解:

$2^4\times 7^4\times {\mathrm{547}}^1$

素因数の和:583

約数の個数: 50

約数和(自身を含む): 47583388

約数和(自身を除く): 26569836

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 547, 686, 784, 1094, 1372, 2188, 2401, 2744, 3829, 4376, 4802, 5488, 7658, 8752, 9604, 15316, 19208, 26803, 30632, 38416, 53606, 61264, 107212, 187621, 214424, 375242, 428848, 750484, 1313347, 1500968, 2626694, 3001936, 5253388, 10506776, 21013552]

約数ペア:

[(1, 21013552), (2, 10506776), (4, 5253388), (7, 3001936), (8, 2626694), (14, 1500968), (16, 1313347), (28, 750484), (49, 428848), (56, 375242), (98, 214424), (112, 187621), (196, 107212), (343, 61264), (392, 53606), (547, 38416), (686, 30632), (784, 26803), (1094, 19208), (1372, 15316), (2188, 9604), (2401, 8752), (2744, 7658), (3829, 5488), (4376, 4802)]