21587319

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{601}}^1$

素因数の和:927

約数の個数: 24

約数和(自身を含む): 33745712

約数和(自身を除く): 12158393

約数列:

[1, 3, 9, 13, 39, 117, 307, 601, 921, 1803, 2763, 3991, 5409, 7813, 11973, 23439, 35919, 70317, 184507, 553521, 1660563, 2398591, 7195773, 21587319]

約数ペア:

[(1, 21587319), (3, 7195773), (9, 2398591), (13, 1660563), (39, 553521), (117, 184507), (307, 70317), (601, 35919), (921, 23439), (1803, 11973), (2763, 7813), (3991, 5409)]