21165088

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4973}}^1$

素因数の和:5009

約数の個数: 48

約数和(自身を含む): 50137920

約数和(自身を除く): 28972832

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 4973, 9946, 19892, 34811, 39784, 69622, 79568, 94487, 139244, 159136, 188974, 278488, 377948, 556976, 661409, 755896, 1113952, 1322818, 1511792, 2645636, 3023584, 5291272, 10582544, 21165088]

約数ペア:

[(1, 21165088), (2, 10582544), (4, 5291272), (7, 3023584), (8, 2645636), (14, 1511792), (16, 1322818), (19, 1113952), (28, 755896), (32, 661409), (38, 556976), (56, 377948), (76, 278488), (112, 188974), (133, 159136), (152, 139244), (224, 94487), (266, 79568), (304, 69622), (532, 39784), (608, 34811), (1064, 19892), (2128, 9946), (4256, 4973)]