25471509

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 40144896

約数和(自身を除く): 14673387

約数列:

[1, 3, 7, 21, 47, 131, 141, 197, 329, 393, 591, 917, 987, 1379, 2751, 4137, 6157, 9259, 18471, 25807, 27777, 43099, 64813, 77421, 129297, 180649, 194439, 541947, 1212929, 3638787, 8490503, 25471509]

約数ペア:

[(1, 25471509), (3, 8490503), (7, 3638787), (21, 1212929), (47, 541947), (131, 194439), (141, 180649), (197, 129297), (329, 77421), (393, 64813), (591, 43099), (917, 27777), (987, 25807), (1379, 18471), (2751, 9259), (4137, 6157)]