20519184

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{353}}^1$

素因数の和:544

約数の個数: 80

約数和(自身を含む): 61103232

約数和(自身を除く): 40584048

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 173, 336, 346, 353, 519, 692, 706, 1038, 1059, 1211, 1384, 1412, 2076, 2118, 2422, 2471, 2768, 2824, 3633, 4152, 4236, 4844, 4942, 5648, 7266, 7413, 8304, 8472, 9688, 9884, 14532, 14826, 16944, 19376, 19768, 29064, 29652, 39536, 58128, 59304, 61069, 118608, 122138, 183207, 244276, 366414, 427483, 488552, 732828, 854966, 977104, 1282449, 1465656, 1709932, 2564898, 2931312, 3419864, 5129796, 6839728, 10259592, 20519184]

約数ペア:

[(1, 20519184), (2, 10259592), (3, 6839728), (4, 5129796), (6, 3419864), (7, 2931312), (8, 2564898), (12, 1709932), (14, 1465656), (16, 1282449), (21, 977104), (24, 854966), (28, 732828), (42, 488552), (48, 427483), (56, 366414), (84, 244276), (112, 183207), (168, 122138), (173, 118608), (336, 61069), (346, 59304), (353, 58128), (519, 39536), (692, 29652), (706, 29064), (1038, 19768), (1059, 19376), (1211, 16944), (1384, 14826), (1412, 14532), (2076, 9884), (2118, 9688), (2422, 8472), (2471, 8304), (2768, 7413), (2824, 7266), (3633, 5648), (4152, 4942), (4236, 4844)]