19870702

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{1021}}^1$

素因数の和:1323

約数の個数: 16

約数和(自身を含む): 30758112

約数和(自身を除く): 10887410

約数列:

[1, 2, 37, 74, 263, 526, 1021, 2042, 9731, 19462, 37777, 75554, 268523, 537046, 9935351, 19870702]

約数ペア:

[(1, 19870702), (2, 9935351), (37, 537046), (74, 268523), (263, 75554), (526, 37777), (1021, 19462), (2042, 9731)]