20187758085

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{538987}}^1$

素因数の和:539233

約数の個数: 32

約数和(自身を含む): 35392108032

約数和(自身を除く): 15204349947

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 227, 681, 1135, 2497, 3405, 7491, 12485, 37455, 538987, 1616961, 2694935, 5928857, 8084805, 17786571, 29644285, 88932855, 122350049, 367050147, 611750245, 1345850539, 1835250735, 4037551617, 6729252695, 20187758085]

約数ペア:

[(1, 20187758085), (3, 6729252695), (5, 4037551617), (11, 1835250735), (15, 1345850539), (33, 611750245), (55, 367050147), (165, 122350049), (227, 88932855), (681, 29644285), (1135, 17786571), (2497, 8084805), (3405, 5928857), (7491, 2694935), (12485, 1616961), (37455, 538987)]