20866896

素因数分解:

$2^4\times 3^6\times {\mathrm{1789}}^1$

素因数の和:1815

約数の個数: 70

約数和(自身を含む): 60650570

約数和(自身を除く): 39783674

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 324, 432, 486, 648, 729, 972, 1296, 1458, 1789, 1944, 2916, 3578, 3888, 5367, 5832, 7156, 10734, 11664, 14312, 16101, 21468, 28624, 32202, 42936, 48303, 64404, 85872, 96606, 128808, 144909, 193212, 257616, 289818, 386424, 434727, 579636, 772848, 869454, 1159272, 1304181, 1738908, 2318544, 2608362, 3477816, 5216724, 6955632, 10433448, 20866896]

約数ペア:

[(1, 20866896), (2, 10433448), (3, 6955632), (4, 5216724), (6, 3477816), (8, 2608362), (9, 2318544), (12, 1738908), (16, 1304181), (18, 1159272), (24, 869454), (27, 772848), (36, 579636), (48, 434727), (54, 386424), (72, 289818), (81, 257616), (108, 193212), (144, 144909), (162, 128808), (216, 96606), (243, 85872), (324, 64404), (432, 48303), (486, 42936), (648, 32202), (729, 28624), (972, 21468), (1296, 16101), (1458, 14312), (1789, 11664), (1944, 10734), (2916, 7156), (3578, 5832), (3888, 5367)]