21707604

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 57817760

約数和(自身を除く): 36110156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 43, 74, 86, 111, 129, 148, 172, 222, 258, 333, 379, 387, 444, 516, 666, 758, 774, 1137, 1332, 1516, 1548, 1591, 2274, 3182, 3411, 4548, 4773, 6364, 6822, 9546, 13644, 14023, 14319, 16297, 19092, 28046, 28638, 32594, 42069, 48891, 56092, 57276, 65188, 84138, 97782, 126207, 146673, 168276, 195564, 252414, 293346, 504828, 586692, 602989, 1205978, 1808967, 2411956, 3617934, 5426901, 7235868, 10853802, 21707604]

約数ペア:

[(1, 21707604), (2, 10853802), (3, 7235868), (4, 5426901), (6, 3617934), (9, 2411956), (12, 1808967), (18, 1205978), (36, 602989), (37, 586692), (43, 504828), (74, 293346), (86, 252414), (111, 195564), (129, 168276), (148, 146673), (172, 126207), (222, 97782), (258, 84138), (333, 65188), (379, 57276), (387, 56092), (444, 48891), (516, 42069), (666, 32594), (758, 28638), (774, 28046), (1137, 19092), (1332, 16297), (1516, 14319), (1548, 14023), (1591, 13644), (2274, 9546), (3182, 6822), (3411, 6364), (4548, 4773)]