216508749

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1\times {\mathrm{1997}}^1$

素因数の和:2580

約数の個数: 16

約数和(自身を含む): 293466240

約数和(自身を除く): 76957491

約数列:

[1, 3, 71, 213, 509, 1527, 1997, 5991, 36139, 108417, 141787, 425361, 1016473, 3049419, 72169583, 216508749]

約数ペア:

[(1, 216508749), (3, 72169583), (71, 3049419), (213, 1016473), (509, 425361), (1527, 141787), (1997, 108417), (5991, 36139)]