19978995765

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10211}}^1\times {\mathrm{7673}}^1$

素因数の和:17909

約数の個数: 32

約数和(自身を含む): 33854495616

約数和(自身を除く): 13875499851

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 7673, 10211, 23019, 30633, 38365, 51055, 115095, 130441, 153165, 173587, 391323, 520761, 652205, 867935, 1956615, 2603805, 78349003, 235047009, 391745015, 1175235045, 1331933051, 3995799153, 6659665255, 19978995765]

約数ペア:

[(1, 19978995765), (3, 6659665255), (5, 3995799153), (15, 1331933051), (17, 1175235045), (51, 391745015), (85, 235047009), (255, 78349003), (7673, 2603805), (10211, 1956615), (23019, 867935), (30633, 652205), (38365, 520761), (51055, 391323), (115095, 173587), (130441, 153165)]