7291431

素因数分解:

$3^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 12472320

約数和(自身を除く): 5180889

約数列:

[1, 3, 7, 9, 21, 27, 63, 173, 189, 223, 519, 669, 1211, 1557, 1561, 2007, 3633, 4671, 4683, 6021, 10899, 14049, 32697, 38579, 42147, 115737, 270053, 347211, 810159, 1041633, 2430477, 7291431]

約数ペア:

[(1, 7291431), (3, 2430477), (7, 1041633), (9, 810159), (21, 347211), (27, 270053), (63, 115737), (173, 42147), (189, 38579), (223, 32697), (519, 14049), (669, 10899), (1211, 6021), (1557, 4683), (1561, 4671), (2007, 3633)]