21865360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24847}}^1$

素因数の和:24871

約数の個数: 40

約数和(自身を含む): 55460736

約数和(自身を除く): 33595376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24847, 49694, 99388, 124235, 198776, 248470, 273317, 397552, 496940, 546634, 993880, 1093268, 1366585, 1987760, 2186536, 2733170, 4373072, 5466340, 10932680, 21865360]

約数ペア:

[(1, 21865360), (2, 10932680), (4, 5466340), (5, 4373072), (8, 2733170), (10, 2186536), (11, 1987760), (16, 1366585), (20, 1093268), (22, 993880), (40, 546634), (44, 496940), (55, 397552), (80, 273317), (88, 248470), (110, 198776), (176, 124235), (220, 99388), (440, 49694), (880, 24847)]