21528036

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13907}}^1$

素因数の和:13960

約数の個数: 36

約数和(自身を含む): 55687632

約数和(自身を除く): 34159596

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13907, 27814, 41721, 55628, 83442, 125163, 166884, 250326, 500652, 598001, 1196002, 1794003, 2392004, 3588006, 5382009, 7176012, 10764018, 21528036]

約数ペア:

[(1, 21528036), (2, 10764018), (3, 7176012), (4, 5382009), (6, 3588006), (9, 2392004), (12, 1794003), (18, 1196002), (36, 598001), (43, 500652), (86, 250326), (129, 166884), (172, 125163), (258, 83442), (387, 55628), (516, 41721), (774, 27814), (1548, 13907)]