21114051

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 48

約数和(自身を含む): 35366400

約数和(自身を除く): 14252349

約数列:

[1, 3, 7, 17, 21, 49, 51, 71, 119, 147, 213, 289, 343, 357, 497, 833, 867, 1029, 1207, 1491, 2023, 2499, 3479, 3621, 5831, 6069, 8449, 10437, 14161, 17493, 20519, 24353, 25347, 42483, 59143, 61557, 73059, 99127, 143633, 177429, 297381, 414001, 430899, 1005431, 1242003, 3016293, 7038017, 21114051]

約数ペア:

[(1, 21114051), (3, 7038017), (7, 3016293), (17, 1242003), (21, 1005431), (49, 430899), (51, 414001), (71, 297381), (119, 177429), (147, 143633), (213, 99127), (289, 73059), (343, 61557), (357, 59143), (497, 42483), (833, 25347), (867, 24353), (1029, 20519), (1207, 17493), (1491, 14161), (2023, 10437), (2499, 8449), (3479, 6069), (3621, 5831)]