20965728

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{4457}}^1$

素因数の和:4484

約数の個数: 72

約数和(自身を含む): 64034712

約数和(自身を除く): 43068984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 84, 96, 98, 112, 147, 168, 196, 224, 294, 336, 392, 588, 672, 784, 1176, 1568, 2352, 4457, 4704, 8914, 13371, 17828, 26742, 31199, 35656, 53484, 62398, 71312, 93597, 106968, 124796, 142624, 187194, 213936, 218393, 249592, 374388, 427872, 436786, 499184, 655179, 748776, 873572, 998368, 1310358, 1497552, 1747144, 2620716, 2995104, 3494288, 5241432, 6988576, 10482864, 20965728]

約数ペア:

[(1, 20965728), (2, 10482864), (3, 6988576), (4, 5241432), (6, 3494288), (7, 2995104), (8, 2620716), (12, 1747144), (14, 1497552), (16, 1310358), (21, 998368), (24, 873572), (28, 748776), (32, 655179), (42, 499184), (48, 436786), (49, 427872), (56, 374388), (84, 249592), (96, 218393), (98, 213936), (112, 187194), (147, 142624), (168, 124796), (196, 106968), (224, 93597), (294, 71312), (336, 62398), (392, 53484), (588, 35656), (672, 31199), (784, 26742), (1176, 17828), (1568, 13371), (2352, 8914), (4457, 4704)]