21923620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{281}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 47755008

約数和(自身を除く): 25831388

約数列:

[1, 2, 4, 5, 10, 20, 47, 83, 94, 166, 188, 235, 281, 332, 415, 470, 562, 830, 940, 1124, 1405, 1660, 2810, 3901, 5620, 7802, 13207, 15604, 19505, 23323, 26414, 39010, 46646, 52828, 66035, 78020, 93292, 116615, 132070, 233230, 264140, 466460, 1096181, 2192362, 4384724, 5480905, 10961810, 21923620]

約数ペア:

[(1, 21923620), (2, 10961810), (4, 5480905), (5, 4384724), (10, 2192362), (20, 1096181), (47, 466460), (83, 264140), (94, 233230), (166, 132070), (188, 116615), (235, 93292), (281, 78020), (332, 66035), (415, 52828), (470, 46646), (562, 39010), (830, 26414), (940, 23323), (1124, 19505), (1405, 15604), (1660, 13207), (2810, 7802), (3901, 5620)]