21003717

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{14087}}^1$

素因数の和:14168

約数の個数: 16

約数和(自身を含む): 32458752

約数和(自身を除く): 11455035

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 14087, 42261, 98609, 295827, 1000177, 3000531, 7001239, 21003717]

約数ペア:

[(1, 21003717), (3, 7001239), (7, 3000531), (21, 1000177), (71, 295827), (213, 98609), (497, 42261), (1491, 14087)]