21093666400

素因数分解:

$2^5\times 5^2\times {\mathrm{853}}^1\times {\mathrm{30911}}^1$

素因数の和:31784

約数の個数: 72

約数和(自身を含む): 51556950144

約数和(自身を除く): 30463283744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 853, 1706, 3412, 4265, 6824, 8530, 13648, 17060, 21325, 27296, 30911, 34120, 42650, 61822, 68240, 85300, 123644, 136480, 154555, 170600, 247288, 309110, 341200, 494576, 618220, 682400, 772775, 989152, 1236440, 1545550, 2472880, 3091100, 4945760, 6182200, 12364400, 24728800, 26367083, 52734166, 105468332, 131835415, 210936664, 263670830, 421873328, 527341660, 659177075, 843746656, 1054683320, 1318354150, 2109366640, 2636708300, 4218733280, 5273416600, 10546833200, 21093666400]

約数ペア:

[(1, 21093666400), (2, 10546833200), (4, 5273416600), (5, 4218733280), (8, 2636708300), (10, 2109366640), (16, 1318354150), (20, 1054683320), (25, 843746656), (32, 659177075), (40, 527341660), (50, 421873328), (80, 263670830), (100, 210936664), (160, 131835415), (200, 105468332), (400, 52734166), (800, 26367083), (853, 24728800), (1706, 12364400), (3412, 6182200), (4265, 4945760), (6824, 3091100), (8530, 2472880), (13648, 1545550), (17060, 1236440), (21325, 989152), (27296, 772775), (30911, 682400), (34120, 618220), (42650, 494576), (61822, 341200), (68240, 309110), (85300, 247288), (123644, 170600), (136480, 154555)]