20027121

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8171}}^1$

素因数の和:8236

約数の個数: 16

約数和(自身を含む): 28765440

約数和(自身を除く): 8738319

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8171, 24513, 155249, 351353, 465747, 1054059, 6675707, 20027121]

約数ペア:

[(1, 20027121), (3, 6675707), (19, 1054059), (43, 465747), (57, 351353), (129, 155249), (817, 24513), (2451, 8171)]