20269725039

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{640009}}^1$

素因数の和:640061

約数の個数: 40

約数和(自身を含む): 33454602720

約数和(自身を除く): 13184877681

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 621, 1173, 1377, 1863, 3519, 10557, 31671, 640009, 1920027, 5760081, 10880153, 14720207, 17280243, 32640459, 44160621, 51840729, 97921377, 132481863, 250243519, 293764131, 397445589, 750730557, 881292393, 1192336767, 2252191671, 6756575013, 20269725039]

約数ペア:

[(1, 20269725039), (3, 6756575013), (9, 2252191671), (17, 1192336767), (23, 881292393), (27, 750730557), (51, 397445589), (69, 293764131), (81, 250243519), (153, 132481863), (207, 97921377), (391, 51840729), (459, 44160621), (621, 32640459), (1173, 17280243), (1377, 14720207), (1863, 10880153), (3519, 5760081), (10557, 1920027), (31671, 640009)]