253485

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 453024

約数和(自身を除く): 199539

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 131, 215, 387, 393, 645, 655, 1179, 1935, 1965, 5633, 5895, 16899, 28165, 50697, 84495, 253485]

約数ペア:

[(1, 253485), (3, 84495), (5, 50697), (9, 28165), (15, 16899), (43, 5895), (45, 5633), (129, 1965), (131, 1935), (215, 1179), (387, 655), (393, 645)]