21641184

素因数分解:

$2^5\times 3^2\times {\mathrm{163}}^1\times {\mathrm{461}}^1$

素因数の和:640

約数の個数: 72

約数和(自身を含む): 62053992

約数和(自身を除く): 40412808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 163, 288, 326, 461, 489, 652, 922, 978, 1304, 1383, 1467, 1844, 1956, 2608, 2766, 2934, 3688, 3912, 4149, 5216, 5532, 5868, 7376, 7824, 8298, 11064, 11736, 14752, 15648, 16596, 22128, 23472, 33192, 44256, 46944, 66384, 75143, 132768, 150286, 225429, 300572, 450858, 601144, 676287, 901716, 1202288, 1352574, 1803432, 2404576, 2705148, 3606864, 5410296, 7213728, 10820592, 21641184]

約数ペア:

[(1, 21641184), (2, 10820592), (3, 7213728), (4, 5410296), (6, 3606864), (8, 2705148), (9, 2404576), (12, 1803432), (16, 1352574), (18, 1202288), (24, 901716), (32, 676287), (36, 601144), (48, 450858), (72, 300572), (96, 225429), (144, 150286), (163, 132768), (288, 75143), (326, 66384), (461, 46944), (489, 44256), (652, 33192), (922, 23472), (978, 22128), (1304, 16596), (1383, 15648), (1467, 14752), (1844, 11736), (1956, 11064), (2608, 8298), (2766, 7824), (2934, 7376), (3688, 5868), (3912, 5532), (4149, 5216)]