20976705

素因数分解:

$3^3\times 5^1\times {\mathrm{155383}}^1$

素因数の和:155397

約数の個数: 16

約数和(自身を含む): 37292160

約数和(自身を除く): 16315455

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 155383, 466149, 776915, 1398447, 2330745, 4195341, 6992235, 20976705]

約数ペア:

[(1, 20976705), (3, 6992235), (5, 4195341), (9, 2330745), (15, 1398447), (27, 776915), (45, 466149), (135, 155383)]