18788757

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1667}}^1$

素因数の和:1717

約数の個数: 24

約数和(自身を含む): 28676256

約数和(自身を除く): 9887499

約数列:

[1, 3, 13, 17, 39, 51, 221, 289, 663, 867, 1667, 3757, 5001, 11271, 21671, 28339, 65013, 85017, 368407, 481763, 1105221, 1445289, 6262919, 18788757]

約数ペア:

[(1, 18788757), (3, 6262919), (13, 1445289), (17, 1105221), (39, 481763), (51, 368407), (221, 85017), (289, 65013), (663, 28339), (867, 21671), (1667, 11271), (3757, 5001)]