40420539

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{13487}}^1$

素因数の和:13536

約数の個数: 20

約数和(自身を含む): 62017824

約数和(自身を除く): 21597285

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 13487, 40461, 121383, 364149, 499019, 1092447, 1497057, 4491171, 13473513, 40420539]

約数ペア:

[(1, 40420539), (3, 13473513), (9, 4491171), (27, 1497057), (37, 1092447), (81, 499019), (111, 364149), (333, 121383), (999, 40461), (2997, 13487)]