20687531409

素因数分解:

$3^3\times {\mathrm{1367}}^1\times {\mathrm{560501}}^1$

素因数の和:561877

約数の個数: 16

約数和(自身を含む): 30670669440

約数和(自身を除く): 9983138031

約数列:

[1, 3, 9, 27, 1367, 4101, 12303, 36909, 560501, 1681503, 5044509, 15133527, 766204867, 2298614601, 6895843803, 20687531409]

約数ペア:

[(1, 20687531409), (3, 6895843803), (9, 2298614601), (27, 766204867), (1367, 15133527), (4101, 5044509), (12303, 1681503), (36909, 560501)]