21000638866

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8699519}}^1$

素因数の和:8699609

約数の個数: 16

約数和(自身を含む): 33823733760

約数和(自身を除く): 12823094894

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8699519, 17399038, 147891823, 295783646, 617665849, 1235331698, 10500319433, 21000638866]

約数ペア:

[(1, 21000638866), (2, 10500319433), (17, 1235331698), (34, 617665849), (71, 295783646), (142, 147891823), (1207, 17399038), (2414, 8699519)]