19983327

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10457}}^1$

素因数の和:10487

約数の個数: 24

約数和(自身を含む): 33381936

約数和(自身を除く): 13398609

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10457, 31371, 73199, 135941, 219597, 407823, 512393, 951587, 1537179, 2854761, 6661109, 19983327]

約数ペア:

[(1, 19983327), (3, 6661109), (7, 2854761), (13, 1537179), (21, 951587), (39, 512393), (49, 407823), (91, 219597), (147, 135941), (273, 73199), (637, 31371), (1911, 10457)]