20490267

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{26371}}^1$

素因数の和:26418

約数の個数: 16

約数和(自身を含む): 32068352

約数和(自身を除く): 11578085

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 26371, 79113, 184597, 553791, 975727, 2927181, 6830089, 20490267]

約数ペア:

[(1, 20490267), (3, 6830089), (7, 2927181), (21, 975727), (37, 553791), (111, 184597), (259, 79113), (777, 26371)]