20901243

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{6271}}^1$

素因数の和:6386

約数の個数: 16

約数和(自身を含む): 30707712

約数和(自身を除く): 9806469

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 6271, 18813, 68981, 206943, 633371, 1900113, 6967081, 20901243]

約数ペア:

[(1, 20901243), (3, 6967081), (11, 1900113), (33, 633371), (101, 206943), (303, 68981), (1111, 18813), (3333, 6271)]