20213427

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{991}}^1$

素因数の和:1530

約数の個数: 16

約数和(自身を含む): 29109248

約数和(自身を除く): 8895821

約数列:

[1, 3, 13, 39, 523, 991, 1569, 2973, 6799, 12883, 20397, 38649, 518293, 1554879, 6737809, 20213427]

約数ペア:

[(1, 20213427), (3, 6737809), (13, 1554879), (39, 518293), (523, 38649), (991, 20397), (1569, 12883), (2973, 6799)]