21654972

素因数分解:

$2^2\times 3^3\times {\mathrm{43}}^1\times {\mathrm{4663}}^1$

素因数の和:4719

約数の個数: 48

約数和(自身を含む): 57460480

約数和(自身を除く): 35805508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 86, 108, 129, 172, 258, 387, 516, 774, 1161, 1548, 2322, 4644, 4663, 9326, 13989, 18652, 27978, 41967, 55956, 83934, 125901, 167868, 200509, 251802, 401018, 503604, 601527, 802036, 1203054, 1804581, 2406108, 3609162, 5413743, 7218324, 10827486, 21654972]

約数ペア:

[(1, 21654972), (2, 10827486), (3, 7218324), (4, 5413743), (6, 3609162), (9, 2406108), (12, 1804581), (18, 1203054), (27, 802036), (36, 601527), (43, 503604), (54, 401018), (86, 251802), (108, 200509), (129, 167868), (172, 125901), (258, 83934), (387, 55956), (516, 41967), (774, 27978), (1161, 18652), (1548, 13989), (2322, 9326), (4644, 4663)]