21404544

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{7963}}^1$

素因数の和:7987

約数の個数: 64

約数和(自身を含む): 64986240

約数和(自身を除く): 43581696

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 336, 384, 448, 672, 896, 1344, 2688, 7963, 15926, 23889, 31852, 47778, 55741, 63704, 95556, 111482, 127408, 167223, 191112, 222964, 254816, 334446, 382224, 445928, 509632, 668892, 764448, 891856, 1019264, 1337784, 1528896, 1783712, 2675568, 3057792, 3567424, 5351136, 7134848, 10702272, 21404544]

約数ペア:

[(1, 21404544), (2, 10702272), (3, 7134848), (4, 5351136), (6, 3567424), (7, 3057792), (8, 2675568), (12, 1783712), (14, 1528896), (16, 1337784), (21, 1019264), (24, 891856), (28, 764448), (32, 668892), (42, 509632), (48, 445928), (56, 382224), (64, 334446), (84, 254816), (96, 222964), (112, 191112), (128, 167223), (168, 127408), (192, 111482), (224, 95556), (336, 63704), (384, 55741), (448, 47778), (672, 31852), (896, 23889), (1344, 15926), (2688, 7963)]