51385941

素因数分解:

$3^3\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 82501120

約数和(自身を除く): 31115179

約数列:

[1, 3, 9, 27, 29, 31, 73, 87, 93, 219, 261, 279, 657, 783, 837, 841, 899, 1971, 2117, 2263, 2523, 2697, 6351, 6789, 7569, 8091, 19053, 20367, 22707, 24273, 26071, 57159, 61101, 61393, 65627, 78213, 184179, 196881, 234639, 552537, 590643, 703917, 1657611, 1771929, 1903183, 5709549, 17128647, 51385941]

約数ペア:

[(1, 51385941), (3, 17128647), (9, 5709549), (27, 1903183), (29, 1771929), (31, 1657611), (73, 703917), (87, 590643), (93, 552537), (219, 234639), (261, 196881), (279, 184179), (657, 78213), (783, 65627), (837, 61393), (841, 61101), (899, 57159), (1971, 26071), (2117, 24273), (2263, 22707), (2523, 20367), (2697, 19053), (6351, 8091), (6789, 7569)]